Gravitas Monster Fountain Pen Review: Big, Iridescent, and Surprisingly Comfortable

Introduction

Some pens are subtle. The Gravitas Monster is not one of them. It is a large, grade five titanium fountain pen with a titanium silicon nitride finish that produces a striking iridescent effect, shifting from dark blue to purple as it catches the light. It pairs that showy exterior with a serious writing setup: a number eight steel nib on an ebonite feed, and a large-capacity vacuum-style filling system called the Crokinole.

At around $430, it sits firmly in premium territory. The question is whether it justifies that price as a writer, not just as an object. After spending real time with it, the answer is a cautious yes, with a few caveats worth knowing about.

First Impressions and Case

The Monster arrives in a hard-shell soft case with a padded, lined interior that looks genuinely comfortable to rest in. It will keep the pen safe in a bag, though the case is optional if you prefer to carry it differently.

Beside a Pilot Metropolitan, the Monster is clearly the bigger pen, but it is shaped much like the original Vac, so it is not as huge as the name might suggest. There are far larger pens out there. That said, it is by no means a small pen, and it is not a pocket pen either.

Design and Build

The body is grade five titanium with that iridescent titanium silicon nitride finish, which is the source of the color-shifting effect. The barrel itself is clear acrylic, so you can watch your ink level and enjoy the view, especially with a darker ink inside. The cap is large and bulbous, with the Gravitas logo on top and no clip.

One small detail worth mentioning: engraved in tiny writing above the turning knob is the phrase “Beware, for I am fearless and therefore powerful.” It is a nice touch of personality.

Comfort in the Hand

Here is the thing that matters most for a pen this size: despite being big, it is not unwieldy. The section is generously sized but not extreme in girth, so even people without especially large hands should find it comfortable to hold.

For anyone who dislikes metal sections, the micro grooves on the section are not sharp at all and provide a genuinely comfortable, non-slip grip. You can post the cap if you want, though the pen becomes a little top-heavy, and it is big and comfortable enough unposted anyway. It is well balanced and well proportioned for what it is.

The Crokinole Filling System

The pen uses the Crokinole filling system, a vacuum-style mechanism. You unscrew the end, pull out the plunger, push it back in, and the vacuum pops and draws ink into the barrel.

Gravitas claims 7 ml of capacity. In practice, I did not quite measure a full 7 ml, but it is unquestionably a large-capacity filler. With a bit of fiddling you can fill the whole barrel, and with a finer nib that means a very long time between refills.

A practical bonus: the section unscrews, which makes cleaning much easier. If an ink stains the barrel, you can remove it and clean it out with a cotton swab. You need a special wrench for the filling mechanism itself, but the removable section is a thoughtful touch for usability.

The Nib and Writing Experience

The pen takes a number eight steel nib, available in extra fine, fine, medium, or broad, each with an ebonite feed. The medium nib on this unit delivers a very pleasant writing experience with a nice wet flow, and the ebonite feed makes for a comfortable feel on the page.

A few observations from testing. It writes wet, very wet in fact. There is a slight natural stubbiness, with downstrokes appearing a touch wider than side strokes. Reverse writing is possible and turns the medium into something closer to an extra fine, though a bit scratchier. Not advertised as a flex nib, you can still squeeze out a little line variation with gentle pressure, but treat it carefully; it is not a flex pen, and pushing it too hard risks springing the nib. Fast writing can feel a little rough simply because this is not a light pen, and there was one possible skip that I believe was mine, since it passed the over-polishing skip test cleanly.

Notably, the iridescent coating is not applied to the nib itself. That is a good thing, since coated tipping can sometimes be felt while writing and is not as smooth as an untreated nib.

Things to Consider Before Buying

The downsides are few but real. There is no clip, and because it is a smooth, bulbous pen, it rolls. It rolled off a desk and snapped in half, which is a fair warning for any metal-and-acrylic pen hitting the floor. Be careful where you set it down.

It is also not a cheap pen at around $430. Between the research and development behind the filling system and how well that system works, the premium price is understandable, but it is still a big investment that will not be for everyone.

As a writing sample note, the medium nib suited a very dark purple ink nicely, which plays off the iridescent finish well. Matching ink to pen finish is half the fun with a pen like this.

Buying Advice

The Monster ticks a lot of boxes: big body, big capacity, big nib, and a finish that looks genuinely cool in the light. More importantly, it is a pleasant writer, which is the part that matters at the end of the day. If you have been eyeing a premium pen as a special treat, this is one worth saving up for. It is lovely to look at, comfortable to use, and fun to fill.

Conclusion

The Gravitas Monster is a well-proportioned large pen that avoids the bulk problems of its size class, backed by a large-capacity vacuum filler, a number eight nib with an ebonite feed, and a memorable iridescent finish. Watch out for rolling, budget for the price, and it is easy to recommend for anyone who loves a substantial pen.