Showing posts with label pen. Show all posts
Showing posts with label pen. Show all posts

Sunday, December 18, 2022

REVIEW: PLATINUM CURIDAS FOUNTAIN PEN

THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
To say that the Platinum Curidas had a bit of a false start would be the understatement of the century. Platinum's "Capless-killer" was extremely hyped when it was first announced in early 2020. But Covid hit hard, and the launch of the Curidas suffered -like almost every other product back then-  from supply issues. 

The initial hype had already slightly dissipated by the time the Curidas actually hit the market.. But then came reports of feeds cracking randomly, and despite Platinum fixing the issue rather swiftly, that totally killed the momentum for the Curidas. Admittedly, even I didn't really give the Curidas much thought... that is, until today! In an effort of Platinum's EU marketing team to finally give this pen the attention it deserves, a Curidas found its way onto my desk for review. Call it a second 'launch', if you will. 
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
In all fairness, the Curidas absolutely deserves more attention. It may not be a perfect pen, but IMHO neither are similar pens like the Pilot Capless or Lamy Dialog 3, and at least Platinum has both competitors firmly beat in terms of pricing. 
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
The design of the Curidas is an interesting one. There's something positively futuristic about it, a bit space-age almost, executed in a very Japanese way. Unfortunately, Japanese pen brands don't shy away from using injection-molded plastics (sometimes on pens many times the price of the Curidas!), so that's also the material of choice we see here. The transparent plastic doesn't give a very premium feeling to the Curidas. Though what it can do is provide a unique insight into the mechanism. I went for the clear finish to get the most out of the demonstrator look, but the other color finishes offer a similar translucency to gaze at the pen's innards.
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
L to R: Gravitas Sentry, Pilot Capless LS, Pilot Capless, Platinum Curidas, Platinum #3776, Lamy 2000, Lamy Safari
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
Uncommon for most Japanese pens in this price range, the Curidas is a very large pen. Measuring 15.3cm (6.01") when closed, it towers out above pens I'd gladly call oversized (such as the Gravitas Sentry). With the nib extended, the story changes a bit; the Curidas is now 14.1cm (5.53") long, the same length as a Pilot Capless. 

With a diameter of 13.6mm (0.54") for most of its length, the Curidas is an incredibly bulky and massive pen. Especially for the Japanese market, it's quite off-brand to make such a large pen. The Curidas has a similar bulkiness to the Lamy Dialog 3 (which I forgot to include in the above size comparisons!), but differs strongly from the all-metal Lamy in terms of weight. The mostly plastic construction has the merit of keeping this bulky pen fairly lightweight, at just 24 grams. 
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
If you're used to wider pens, the Curidas can be a comfortable fit for you. For once, clip placement - a classic problem with retractable fountain pens - isn't an issue with the Curidas. The wide diameter of the barrel keeps your grip mostly out of the way of the clip. My fingers still rest against it, but it's not too noticeable. Just in case you do find it bothersome, Platinum did make the clip removable (they even include a tool to disassemble it). 
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
In terms of comfort, the biggest gripe for me is this weird protrusion on the underside of the pen (which is necessary to make room for the internal mechanism to actuate). You might be able to avoid it if your grip sits quite far back, but there's a very real chance that your middle finger will bump into it from time to time. Personally, I find it incredibly distracting for my grip. At the very least, I'm convinced they could've made it a bit more rounded off and comfortable. 

All in all, the Curidas is a comfortable enough pen for short to mid-length writing sessions, and it's a pen that's easy to reach for in those scenarios. Writing a full-length essay with it, though (like the draft for this review)... my hand did get cramped a bit.
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
Quite a few parts! You can also disassemble the front section as well!
The Curidas is built around a rather complicated and large mechanism, so it's not very hard to see why Platinum had to make this pen so big to accommodate its innards. The mechanism is mostly metal, but some parts are made of plastic. I'd feel more reassured about longevity if it was entirely metal, though so far I've seen no signs of wear that would give reason for concern. Pretty much the entire thing can be disassembled quite easily (the same cannot be said for the Capless nor Dialog 3), which is very practical for cleaning.

The knock is very long, and has to be pressed all the way down to deploy the nib. That long travel is needed to slide the entire nib unit and its housing (let's call it the 'cocoon') forward. It has a rather satisfying click in which you feel both internal springs engage, and a pleasing and loud 'snap' at the end. The knock does rattle a bit when the nib is extended, though.
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
The sealing mechanism for the nib (a plastic and rubber tube with a small trap door) seems to do its job perfectly, even after quite a few weeks of deliberately letting it sit untouched. No signs of drying out yet. I can see a potential issue where, over time, lint and debris could work their way in between the trap door and the soft rubber seal around the cocoon, which could prevent the door from sealing properly. But since the entire mechanism can be disassembled for cleaning, this would be an easy fix.
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
Onto the writing end then: The steel F nib (similar in design to other steel Platinum nibs, only smaller of course) required a slight nudge to fix a minor misalignment that was causing some scratchiness. But after that, it has been smooth sailing, really. The nib still has a bit of pleasant feedback, but that's not uncommon for a platinum nib. It feels nice using a true Japanese fine nib again - it just has that certain quality and balance to it that only Japanese nib manufacturers get right. It lays down a very fine line in a balanced ink flow.  The nib has an ever-so-slight amount of bounce to it, which cushions the writing experience quite nicely. 
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN
At 85€ (Currently on sale for 75€ at Penworld!), the Platinum Curidas doesn't cannibalize on Pilot Capless or Lamy Dialog 3 territory. Instead, it sits comfortably in that sub-100€ price range where it becomes increasingly harder and harder to find exciting pens. So it certainly has its value and uniqueness going for it as selling points. 

The Curidas has the potential to become an excellent mid-range clicky fountain pen. But this is a first iteration of a very complex and ambitious pen, and there are some things that can still be optimized. Especially simplifying the mechanism and getting rid of that 'bump' on the underside of the pen would be a welcome change. Trying to make the entire pen a touch smaller also probably wouldn't hurt. Let's hope that Platinum treats it properly and continues to further improve and hone the Curidas in a future version 2.0!

Note: This product was provided by Penworld, free of charge, so I could write this review. I was in no way influenced in the making of this review. The opinions shared in this review are completely my own! This post does not contain affiliate links.
THE PENCILCASE BLOG REVIEW: PLATINUM CURIDAS FOUNTAIN PEN

Saturday, October 1, 2022

REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN

REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
Yes, it's no surprise that Gravitas has quickly become a sort of personal catnip for me - every new release looks more impressive than the last, and for the life of me I can't keep my wallet shut whenever I see a new Instagram post from Ben... When would this be considered an addiction?

Perhaps you're thinking: "Another Gravitas review? Didn't he publish a review of the Gravitas Sentry just a month ago?" And you'd be absolutely right! But at the dizzying pace that Gravitas produces fantastic new releases, with new products around the corner seemingly every week, I can barely keep up buying them... let alone getting them reviewed! 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
L to R: Black Delrin, white Delrin, Polycarbonate 'Big Dropper', Stainless steel Sentry
In an effort to keep up, I figured I'd bundle two of the more recent Gravitas products together since they share most stats anyway, differing only in the material they're made of. So in this review, we're taking a look at two additions to the Sentry lineup: the Gravitas Delrin and Big Dropper fountain pens. 

For those of you that liked the design of the Gravitas Sentry, but were put off by the sheer weight of these solid metal pens, these two might be right up your alley. The Big Dropper and Delrin fountain pens follow very closely on the design of the Sentry, carrying over the flattop design with pointed finials, curvy cap, and elegant long tapered body.

The real difference obviously comes from the use of clear translucent polycarbonate for the Big Dropper, and Delrin for the... well, Delrin version. 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
The Big Dropper is made from clear translucent polycarbonate with a matte frosted finish. The machining and frosting is very uniform and provides a pleasant texture to the pen. As the name suggests, the Big Dropper lends itself perfectly to eye-droppering. I typically stay away from eye droppers (I don't care for the potential discoloration on clear pens, and I rarely ever need or want the ridiculous large ink capacity they provide), but this pen comes fully prepared, should you wish to eyedropper yours. 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
O-rings ready for eye-droppering!
They even added o-rings to the threads on both the section and cap to ensure an airtight seal (though you might want to add a dab of silicon grease on the section threads, just to be safe). It's difficult to say how the stainless steel section will react to prolonged contact with ink, but I'd assume it'll be fine as long as you don't go for very acidic iron gall inks or the like.
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
A subtle detail separates the regular black Delrin on the left, from the Delrin orange Cerakote on the right.
The Delrin option is perhaps my favorite (at least until I get my hands on the new Ultem version!). Delrin is a rather unique 'engineering plastic', meaning it has special characteristics and high durability that make it useful in industrial applications. It is slightly more dense, and has a super-slick and smooth (Delrin is often used as a liner in moving parts, because it's low-friction) feel in the hand. Just like the Big Dropper, the Delrin version comes outfitted with o-rings, ready to be eyedroppered!
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
The two standard colors of Delrin are opaque black and opaque white (interestingly, the white Delrin is the only pen without an etched Gravitas logo on the cap, because the material doesn't work well with laser-etching!). For a hint of color, there's also a black delrin version with an orange logo on the cap (though the color is quite faint) and an orange cerakote section. If you want even more color, Ben has also found a way to dye the Delrin into whatever color you like. If you've already bought a Gravitas pen before, you're automatically a Gravitas member and have access to a members-only area on their website where you can find some of those more experimental and flashy finishes! 

The one downside of Delrin is that it is highly susceptible to scuffs and scratches, so you might want to look elsewhere if you want to keep your pens looking pristine! This is especially noticeable on the black delrin, scuffs are harder to see on the white version.
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
L to R: Namisu Nova, Ensso Piuma, Gravitas Pocket, Gravitas Delrin, Gravitas Sentry, Gravitas Entry, Gravitas Flagship, Lamy 2000, Lamy Safari
Dimensions - at least on the outside - are identical to other variants of the Sentry, with a capped length of 14.6 cm/ 5.75", and 13.9/ 5.47" cm uncapped. At the widest point of the cap, the Sentry measures 15.5 cm/ 0.61" in diameter, and the barrel is 14 cm/ 0.55" at its widest. 

Of course, polycarbonate and Delrin - while both durable plastics - can't be machined as thin as their metal counterparts. This is apparent in the changes to the thickness of the cap, which meant that a slight redesign of the internals was necessary to make it fit together properly 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN
Sentry Delrin on the left, Sentry aluminum black anodized on the right
So while the section remains equally long to the one found on the Sentry, you'll notice that it is in fact a bit narrower (12mm at its widest point versus 13 on the metal version of the Sentry). This puts the Big Dropper and Delrin Sentries in between the Entry and (metal) Sentry in terms of section size, striking a good balance in my opinion. 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN - www.pencilcaseblog.com
Those millimeter differences might not sound like much, but they do make the plastic versions to the Sentry feel noticeably less bulky in the hand. Also due to the increased thickness of the cap, there's a more visible transition from the barrel to the section, though in the hand it's still barely noticeable as it steps down very gradually from the tapered edge of the barrel to the rubber o-ring, then the threads, and finally the section. 
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN - www.pencilcaseblog.com
The plastic cap and barrel of course make for a substantially lighter pen. The polycarbonate big dropper weighs in at 29 grams (uncapped 26g), while the slightly more dense Delrin version weighs 32g (uncapped 26g). Since the metal section provides most of that weight, both plastic Sentries have a very clear balance towards the section, and feel much more nimble in the hand. I know a lot of people have strong feelings against metal sections, but Gravitas consistently implements them very well on all their pens, with a strongly pronounced taper and ridged machined texture to provide a comfortable grip.
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN - www.pencilcaseblog.com
I got these back when Gravitas still equipped their pens with JoWo nibs. There's no point in telling you how a JoWo nib writes (you probably know this already, anyway). BUT, the new nib units are still backward-compatible with JoWo housings, so you can swap them out with spare nibs you may have lying around. In my limited experience with the new Gravitas steel nibs, I was quite pleased with how they perform, they can certainly hold up against JoWo.
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN - www.pencilcaseblog.com
The Gravitas Sentry Big Dropper and Sentry Delrin are enticing new additions to the ever-expanding Gravitas catalog. They offer the same streamlined-yet-robust design of the Sentry, which I enjoy a lot. Will you mistake the Big Dropper or Delrin Sentry for a small pen? Probably not. But the combination of lighter weight and balance, and more average section width, definitely strikes a better balance if you're not that into oversized pens. 

They're priced fairly reasonably as well, at just 95€ regardless of which plastic version (polycarbonate, Delrin, or Ultem) you choose. As always, Ben Walsh has even more material options to choose from on the horizon (most noticeably, a Micarta version is currently in production), so there's no lack of options!

Some of the products featured in this review were sent to me by Gravitas. I was in no way influenced in the making of this review, the opinions shared in this review are completely my own! This post does not contain affilate links.
REVIEW: GRAVITAS SENTRY BIG DROPPER & DELRIN FOUNTAIN PEN - www.pencilcaseblog.com

Wednesday, September 7, 2022

REVIEW: MODERN FUEL BOLT ACTION PEN

REVIEW: MODERN FUEL BOLT ACTION PEN, THE PENCILCASE BLOG
Several years ago I reviewed (HERE) a then-Kickstarter project for what was - and continues to be - arguably the most overengineered mechanical pencil I've ever seen, by US-based brand Modern Fuel. The precise machining and meticulous details of the Modern Fuel Pencil got me hooked. While their products aren't exactly cheap, I do feel confident that they are as close to heirloom quality as they get. I was really curious to find out if the same would hold true for their newer products, in particular the Modern Fuel Bolt Action pen. (Spoiler alert: it does!)
REVIEW: MODERN FUEL BOLT ACTION PEN
Designwise, Modern Fuel has a set-in-stone design language: sleek and clean aesthetic that runs across all of their products. While I compared mechanical pencil to an overengineered version of the Bic pencil, that comparison obviously doesn't hold true for the Bolt Action pen, but through the same, straight cylindrical profile, same thickness, tip shape and almost identical length, it's not hard to see where the design inspiration comes from. The entire pen received a hand-brushed finish, which adds a bit of random texture to the otherwise clean and modern look of the pen.
REVIEW: MODERN FUEL BOLT ACTION PEN
Other than that, the Bolt Action shares a very similar shape with Modern Fuel's own ballpoint 'Pen'. It has a j-shaped cutout for the bolt mechanism (obviously), but also a knock button on the back. 
REVIEW: MODERN FUEL BOLT ACTION PEN
The Modern Fuel Bolt Action's mechanism is essentially a hybrid between those found on the Karas and Tactile Turn Bolt Action pens
However, unlike the Karas Bolt Action pen, the knock doesn't serve an actual purpose (other than aesthetics). It completely retracts into the body when you engage the pen (and sits perfectly flush - a really nice detail!), making it impossible to activate the bolt-action mechanism just by pressing the knock. You'll really want to use the actual bolt for that. The bolt itself is a small cylindrical button with very crisp knurling on the side, almost like a small cog (The knurling actually serves a dual purpose!). The mechanism has surprisingly little travel, so it engages quickly with one swift motion.
REVIEW: MODERN FUEL BOLT ACTION PEN
L to R: Karas Bolt Action, Tactile Turn Bolt Action, Modern Fuel Bolt Action, Modern Fuel Pen, Modern Fuel Pencil, Wingback Mechanical Pen, Lamy 2000, Lamy Safari
REVIEW: MODERN FUEL BOLT ACTION PEN
The Bolt Action looks nimble, mostly thanks to the fairly slender design (9.3mm/ 0.37"). It measures 13.8 cm/ 5.43", down to 13.6 cm/ 5.73" when the bolt mechanism is engaged, so it's definitely a full-sized pen, just noticeably narrower than some of the competition (by comparison, the Tactile Turn Bolt is 11mm). All Modern Fuel products are available in either stainless steel, titanium, bronze, or copper. I was sent the steel version of the Bolt Action, which weighs 36 grams. It strikes a good balance between feeling solid yet nimble in hand. Interestingly, no weight measurements are given on Modern Fuel's website, but according to my guesstimate calculations, the titanium version should come in around 20 grams, with the bronze and copper versions both around 40 grams.
REVIEW: MODERN FUEL BOLT ACTION PEN
Machining is top-notch on this pen. Nothing rattles around when you write, and the tolerance on the tip is so small that there's almost no wiggle room for the refill. Same can be said for the bolt-action mechanism, which fits precisely in the barrel, yet moves smoothly up and down and engages with a satisfying 'snick'. The bolt is fun to play with, but the knurled edges are quite sharp so you do feel that on your finger after a while (maybe to prevent you from getting distracted for too long!)
REVIEW: MODERN FUEL BOLT ACTION PEN
Modern Fuel's Bolt Action pen is much sleeker and low-profile than comparable Tactile Turn (top) or Karas Pen Co (bottom) offerings
Modern Fuel ships this pen with a Pilot G2 refill as standard. I like the G2 refill a lot, but the Modern Fuel Bolt Action is also a very nice housing for it. It's a massive departure from the chunky and heavy copper Tactile Turn Bolt Action (the older-style Glider) that I daily. And it looks super sleek on the desk. While I'm personally not particularly bothered by it, the biggest complaint could be the all-smooth metal barrel. While the brushed finish adds a little to the grip (it's better than a polished metal finish), it can still become a bit slippery after a while.
REVIEW: MODERN FUEL BOLT ACTION PEN
When I say this pen is over-engineered, I mean it! The Bolt Action pen arrives with an 11-page manual, and you'll probably want to hang on to it. Like with the pencil, part of the beauty of Modern Fuel's products is that there's no obvious way to disassemble the Modern Fuel Bolt Action. The body and tip are all a single piece of metal, so the only way to get to the refill is through the mechanism. But how? Well, included in the box are a few small parts (all metal, by the way!), including a little wrench with what looks like a geared hole on one end. That hole fits precisely on the cog-shaped bolt to help unscrew it, and out pops the entire mechanism. 

The biggest engineering feat is that, despite it being such a slender and seemingly simple pen, the Bolt Action can accommodate anything from a Fisher Space or standard Parker G2, up to refill types that are even longer than a Pilot G2 (think: certain rollerball refills, etc.). Adjusting the pen to fit those different size refills is done with the other end of the little wrench-tool, which doubles as a screwdriver to tighten or loosen a long threaded set screw on the inside of the bolt mechanism to control how far it protrudes (This can also serve as a fine-tune mechanism to have the refill tip extend more or less from the tip of the pen, according to your personal preference!). 
REVIEW: MODERN FUEL BOLT ACTION PEN
You'll want to hang onto the instruction booklet for this one!
For very short refills like the Fisher-Space, a black metal adapter is included in the box, while an included shorter set screw allows accommodating very long refills. They even added a longer spring to better suit different refills. 

Perhaps the only thing missing in the box is a clip, contrary to the slide-on clip included with the regular pen and pencil. However, there's a simple reason for that: the slide-on clip can't work because it would interfere with the bolt mechanism on the side of the barrel. That means you'll have to go clipless with this one, perhaps a bit unfortunate for a pen that's otherwise quite pocketable!
REVIEW: MODERN FUEL BOLT ACTION PEN
MSRP on the Modern Fuel Bolt Action starts at 150$ for the bronze pen, up to 200$ for the all-titanium version. As said, Modern Fuel products don't come cheap, but I continue to be amazed at their design ingenuity and machining perfection. The looks of the Bolt Action are sleek and unobtrusive, making it even more impressive when you see all the practical engineering going on inside!

Note: This product was provided by Modern Fuel, free of charge, so I could write this review. I was in no way influenced in the making of this review. The opinions shared in this review are completely my own! This post does not contain affiliate links.
REVIEW: MODERN FUEL BOLT ACTION PEN

Thursday, August 18, 2022

REVIEW: GRAVITAS SENTRY FOUNTAIN PEN

REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
I'm a total sucker for Gravitas pens if you hadn't noticed yet, an addiction fueled by the fact that Ben Walsh (founder of Gravitas Pens) always seems to know exactly what I want in a pen! The last Gravitas pen I reviewed was the Entry, quite a while ago: a well-rounded design, tough construction, great ergonomics, all at a reasonably wallet-friendly price point. 

One of the unique things about the Entry is its slender form factor, something you don't often see on metal fountain pens. Though with my personal preference for oversized pens, I imagined how cool it would be to have a slightly more oversized version of the Entry... Luckily, Ben was already one step ahead of me and by the time I published my review of the Gravitas Entry, he had released this: the Gravitas Sentry
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
From an aesthetic point of view, the Sentry is probably one of my favorite pens of the moment, at least as far as metal pen designs go. Admittedly, the Entry already ticked a lot of boxes for me, so there wasn't much I'd change about it. It shares the simple flat-top design with pointed finials of the Entry. The cap-to-body ratio of the Sentry is still noticeably exaggerated, with a long barrel and shorter-than-usual cap, which creates a pleasing imbalance in the design. Compared to the Entry, the Sentry just gained some weight (literally). Everything is a bit wider, which is especially noticeable on the barrel: gone is the almost paintbrush-like, thin barrel of the Entry, which is now noticeably thicker, though with a similar gentle taper to it. 
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
Put them side by side, and the Entry appears even more slender! The Flagship model, on the other hand, makes even the Sentry look dainty!
I find the added bulkyness gives the Sentry more pleasing overall proportions than the rather slim Entry. It's hard to put a finger on it, but the way Gravitas executed the flat-top, pointed finial design on the Sentry is just very pleasing to the eye. The Sentry is not quite as minimal and brutalist as the Namisu Nova (which remains another personal favorite). Also within Gravitas' own range of pens, the Sentry definitely feels more refined and elegantly shaped compared to the super-robust and bulky 'Flagship' fountain pen.
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
Just like the smaller Entry, the Sentry is unadorned on the outside, apart from the clean and minimal Gravitas logo engraved right above the cap edge. The large Sentry is an ideal canvas to show off the laser-etched designs that Gravitas is known for, though so far only the 'Skittles' Sentry can be ordered with etched designs on it (though I'm certain that'll change in the future).

Just like the Entry, the Sentry is available in a plethora of colors and materials: a bunch of anodized aluminium colors, as well as the special 'Skittles' finish, brushed stainless steel, and polished brass or copper.
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
Under the cap, we again find the PVD-coated black stainless steel sections that are also on the Entry. The black section provides some visual contrast, especially against the raw steel, copper, and brass versions of the Sentry. I would've hoped for matched section materials to create a more seamless look, though I do agree with Ben's reasoning that the steel section partially mitigates the 'penny smell' typically associated with brass and copper pens. The section has machined grooves for grip, a feature that is now standard on all of Gravitas' fountain pen designs (including the original 'Flagship' fountain pen).

Machining on the edges and finials is super-crisp (Some have even described the pointed finials of the Entry and Sentry as 'sharp'. While they sure are pointy, I wouldn't go as far as saying you can actually hurt yourself on them.), showing off the very precise machining and tight construction tolerances, a constant throughout all of Gravitas' pens. 
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
L to R: Namisu Nova, Ensso Piuma, Gravitas Pocket, Gravitas Delrin, Gravitas Sentry, Gravitas Entry, Gravitas Flagship, Lamy 2000, Lamy Safari
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
But also in terms of writing comfort, the Sentry scores high marks. Though that comes with the disclaimer that I always tend to gravitate towards large and oversized pens. The features I already enjoyed about the Entry remain: a grippy concave, ridged section, a smooth and comfortable transition towards the barrel, and threads that are hardly noticeable in your grip. 

The Sentry and Entry are much closer in length than I first thought, only about a millimeter apart (the Sentry measures 14.6 cm/ 5.75", the Entry 14.5 cm/ 5.71"). Uncapped, the Sentry still measures 13.9 cm/ 5.47", plenty long enough to fit comfortably in any hand. Posting the cap is technically possible, but makes little sense. It doesn't extend the pen very much, yet adds a whole lot of weight that you definitely don't need.
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
Sentry on the left, Entry in the middle, and Flagship on the right, note how the Sentry's section is even wider than that of the Flagship!
Roughly 2 mm added to the overall diameter, that's the key difference between the Sentry and Entry. While that may not sound like much, it drastically changes how the Sentry looks and feels. The added diameter continues in the section, which is a substantial 13 mm/ 0.51" at the widest point (even at the narrowest point, the section still measures a generous 11 mm/ 0.43"). Together with the pronounced concave curve in the section profile, the added thickness makes the Sentry a very comfortable and fatigue-free pen to write with, whereas the Entry feels a bit narrow at times - at least in my hand.

The Sentry being an oversized and chonky pen made out of metal, you can of course expect some weight. If you don't like too much heft, turn straight to the aluminium version for your best bet at a fairly nimble pen - even that one, due to its stainless steel section, still weighs in at a hefty 40 grams! For the stainless steel, brass and copper versions, the total weight jumps up to 84, 89 and 94 grams respectively. 

It goes without saying that the Sentry caters specifically to those that like large, heavy and oversized pens. If you're not certain about what type of pen you prefer, the Entry remains an easier pen to recommend to a wider audience, because of its more middle-of-the-road dimensions.
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
*Note that these are JoWo nibs, not the new nibs that Gravitas now uses!
Not pictured here (because I got these pens a while ago!) are the new custom nibs that Gravitas now uses. Due to supply issues with JoWo, Ben recently made the decision to design his own nib units and have them manufactured by a different supplier (though to the same spec as the JoWo nib units, so nib units can still be interchanged). 

Unfortunately the new nibs are a tad smaller than JoWo's #6, but compared to the flourished design of JoWo's nibs, they do provide a more clean and minimal look with just the stamped (not laser-etched!) Gravitas logo on them. The new nibs are tuned very well (something Ben does in-house for all his nibs). It's quite smooth, with a line width that runs a touch finer compared to JoWo and Bock (I tried the fine and it's definitely more like a JoWo extra fine). Ink flow also seems to be a bit more towards the balanced side compared to similar JoWo nibs. 
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN
The Gravitas Sentry starts at 95€ for the anodized aluminium versions, steel or brass versions move up to 100€, while the copper version comes in at 105€. While that does put the Sentry at a slight premium over the Entry (which starts at 80€ for the aluminium versions), both pens are close enough in price to not let that be the main differentiator between the two. 

The choice then boils down to a simple matter of preference, between the very reasonably-sized Entry or the oversized -though very comfortable!- Sentry. To nobody's surprise, I think both are great pens, but my personal choice definitely goes to the Sentry. It has rapidly become a new personal favorite, and I expect it to remain a top pick in my daily carry for quite a while!

Some of the products featured in this review were sent to me by Gravitas. I was in no way influenced in the making of this review, the opinions shared in this review are completely my own! This post does not contain affilate links.
REVIEW: GRAVITAS SENTRY FOUNTAIN PEN