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Home Gravitas - Sentry Polycarbonate
GravitasSKU: TTP1

Gravitas - Sentry Polycarbonate

€100,00 / Sold out
Tax not included. Shipping calculated at checkout.
5.0 (5 reviews)
Nib: Steel
Nib Size: Extra Fine
Gravitas - Sentry Polycarbonate
€100,00 /
Nib: Steel
Nib Size: Extra Fine

 
 
Description

Meet the Sentry fountain pen, the larger sibling to the entry-level model from gravitas. While slightly weightier than its counterpart, the Sentry maintains a comfortable and user-friendly design, thanks to its weighted section. With triple-start cap threads, the cap effortlessly disengages in just 2.25 turns.

The section is crafted from 304 stainless steel, coated with CrN, and features micro-machined grooves for improved grip.

The 25mm-long section, ranging from 13.25mm to 11.5mm in width, is expertly crafted from 304 stainless steel. Coated in sleek black PVD and adorned with micro-machined grooves, the section ensures a secure grip during every writing session. Equipped with a Gravitas-production size 6 steel nib compatible with Jowo No. 6 threads and abs plastic feeder, the Sentry offers versatile writing options, including Extra Fine, Fine, Medium, Broad and Fine Flex.

Enhancing your experience, the Sentry comes with a standard international converter provided with each fountain pen.

Elevate your writing journey with the refined craftsmanship of the Sentry fountain pen.

Specifications:

- brand: Gravitas
- type: Fountain Pen
- color: Clear
- body material: Polycarbonate
- cap type: Screw-cap
- filling mechanism: Provided Converter / Standard International Cartridge
- nib material: Steel
- nib size: Extra Fine, Fine, Medium, Broad, Fine Flex
- postable: Yes
- trim: Silver color
- length overall (closed): 147 mm
- length overall (posted): 143 mm
- body length: 138 mm
- cap length: 60 mm
- body diameter: 13,25 mm
- cap diameter (without clip): 15 mm
- weight (overall): 35 grams
- body weight: 31 grams
- cap weight: 4 grams

Specifications

Brand: Gravitas
Model: Sentry
Edition:
Color: Demonstrator
Body Material: Polycarbonate
Finish:

Cap Type:
Screw
Filling Mechanism:
Cartridge Converter
Postable:
Yes
Trim Color:
Length Overall (Closed): 147 mm
Length Overall (Posted): 143 mm
Body Length (Uncapped):
138 mm
Body Diameter: 13.25 mm
Cap Diameter (Without Clip): 15 mm
Weight Overall: 35 g
Body Weight: 31 g

Customer Reviews

Based on 5 reviews
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t
tillie
In Regular Rotation

the gravitas sentry - polycarbonate has quickly become one of my favorite pens. the nib is so smooth and writes like a dream. i love being able to view the ink i have loaded through the frosted exterior finish. love, love, love. 🩷🩷🩷

A
Andreas Volkmann
Awemazing!

Despite the shop owner Emy being very busy with Black Friday sales he quite frequently chattet with me patiently and friendly answering all my questions about his offerings and my final purchase - exceptional customer service!
Everything I ordered arrived safe and sound quickly.
He even included a handwritten letter to the shipment - such a kind gesture!
So this was my first purchase from Pen-Venture - it will be my go-to place from now on.
- a very pleased customer

J
Josh Tuck
The pen is better traveled than I am...

...and that is the only thing I regret about my purchase. Seriously... Ireland, Romania, then off to pokey old Fort Wayne Indiana? Ridiculous. Rueben had the nib tuned up and working brilliantly, and his team had it shipped (with a lovely hand written note) quicker than I expected. The Sentry (my second) is perfectly balanced in your hand, has a great grip, and writes wonderfully. Ben is an amazing craftsman. Buy your next Gravitas from Pen Venture!

J
João Veloso
My first but not the last

I've just received mine and the first impression is very positive.
The nib seems to be as good as the Jowo's I'm used to and the weight distribution of the pen is excellent, we'll see how it ages.
As for Pen Venture, of all the online shopping experiences I've had, this one surprised me very positively, the speed of processing and the care taken with the packaging were remarkable and I also received a handwritten letter used to test the pen and inform me of the ink used.

C
CHAN SUCK
The thickest Broadenib out of the three Gravitas Pen purchased from Pen-Venture

I love the length and the grip...
It is also good to be able to check the ink capacity of the converter immediately because it is a transparent material.
It's Broad nib, so you can feel a very soft writing experience. ^^

I'm annoyed that the first pen I ordered from Gravitas Pen site is still on hold... but the good thing is that Pen-Venture was able to quickly get 3 pens I liked and use them.

For the time being, I think I'll keep other makers' fountain pens in storage and spend time with Gravitas pens....

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★ Reviews

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857 reviews
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A
Gravitas - Vac 2.0 Aluminium | Black
Andreas Andersson
Substantial, reliable, and smooth

The Gravitas Vac 2.0 is an amazing tool for handwriting. The nib is smooth, distinct, and reliable, and it has some weight due to its durable materials, black aluminium/aluminum and ultem, the perfect combination of a tool which will survive most of us, still functioning if the internal vacuum piston system is cared for. I have enjoyed this fountain pen for seven days and I am pleased to say it is one of my better ones, and it is fun to use. I recommend it.

(Emy was correct: The nib has great flow, about six drops of ink will automatically flow from the nib after I have just filled it, after that no problems; tissue paper or the ink bottle under the nib until that happens is recommended, other than that: an excellent fountain pen.)

D
Tombow - Mono Sand 512B | Ink Eraser
Dan Shapiro
Mono sand combo eraser

This is good. It erases well

N
Gravitas - Vac 2.0 Aluminium | Black
Nabil Zouari
FANTASTIC !!!!!

What a fantastic pen—and customized too!

It writes beautifully and arrived surprisingly quickly, even though I’m in Canada. This is my third order from Pen Venture, and once again, the experience has been outstanding. It's always a pleasure to come back.

My Gravitas arrived perfectly tuned and was ready to write straight out of the box. I filled it with Pelikan Royal Blue, and from the very first stroke, it was smooth, consistent, and an absolute joy to use.

I own several excellent fountain pens, including a Pilot Custom 823, a Sailor 1911, and a Leonardo Momento Zero, and I can honestly say that this Gravitas holds its own among them. It is remarkably well made and comes very close to being the perfect writing instrument.

A big thank you to the entire Pen Venture team for the exceptional service, careful tuning, and attention to detail. I’m already looking forward to my next order!

C
Gravitas - Vac 2.0 Aluminium | Black
Cosmin R.
A Worthy Sequel to an Awesome Pen

On its own, this pen feels very durable and premium, and the bead-blasted, matte black coated treatment gives it a very “professional” vibe. The Fine nib is bouncy and smooth, very usable on the underside as well (with added feedback, but not scratchy), the ribbed steel grip is very comfortable, the feed holds a lot of ink on its own, and the reservoirs behind it will keep it in writing condition for dozens upon dozens of pages after a fill.

The cap screws open and closed smoothly, with a very satisfying click at the end when closed; it posts deeply, and it also posts securely after being pressed down slightly on the barrel. It is light enough that it does not back-weight the pen significantly when posted.

The barrel construction, along with the newly-implemented Kraken filling system, ensure a significant amount of ink is pulled in from the first try. Much like the main cap, the blind-cap screws open and closed smoothly for refills or ink transfers between reservoirs.

Compared to its predecessor:
Fewer transparent areas overall, but the Vac 2.0’s structure feels more solid than the Ultemate Vac.
The body thickness and thread profiles are different on the Vac 2.0 than on the Ultemate Vac, no mix-and-match potential here.
The matte black coating gives the pen a more refined, premium feel on the metallic parts.
The inner lining of the cap doesn’t get stuck in the barrel thread as often, and when it does, it either slips back into correct position, or it is easier to unscrew and reposition, without the metal thread eating into the cap material.
The coated, no-breather-hole design of the new Gravitas steel nib may not be to everyone’s taste, but I like it a lot, and functionally, this nib feels more bouncy and polished, with smoother writing than its predecessor.
The feed seems to pick up a lot more ink on its own from just a 5-second dip, and the small reservoir behind it looks to have more capacity to back it up before needing to unscrew the blind cap and refill it from the large reservoir.
The Kraken filling system seems to suck up significantly more ink per pump than the mechanism from the Ultemate Vac.

Overall, a very well made fountain pen, and a thorough refinement to an already excellent design. Very satisfied with this purchase!

User picture User picture
K
Gravitas - Vac 2.0 Aluminium | Black
Keith Schumacker
Great Little Monster

Wow!
Just like the Monster but thinner. For me it is more comfortable for longer writing sessions. The filling system is stellar. Holds lots of ink. As always Ben Walsh and Emy have delivered a innovative and enjoyable writing experience. Can't wait to see what's next. Keep up the wonderful work!

123
Review picture
Cosmin R.
A Worthy Sequel to an Awesome Pen

On its own, this pen feels very durable and premium, and the bead-blasted, matte black coated treatment gives it a very “professional” vibe. The Fine nib is bouncy and smooth, very usable on the underside as well (with added feedback, but not scratchy), the ribbed steel grip is very comfortable, the feed holds a lot of ink on its own, and the reservoirs behind it will keep it in writing condition for dozens upon dozens of pages after a fill.

The cap screws open and closed smoothly, with a very satisfying click at the end when closed; it posts deeply, and it also posts securely after being pressed down slightly on the barrel. It is light enough that it does not back-weight the pen significantly when posted.

The barrel construction, along with the newly-implemented Kraken filling system, ensure a significant amount of ink is pulled in from the first try. Much like the main cap, the blind-cap screws open and closed smoothly for refills or ink transfers between reservoirs.

Compared to its predecessor:
Fewer transparent areas overall, but the Vac 2.0’s structure feels more solid than the Ultemate Vac.
The body thickness and thread profiles are different on the Vac 2.0 than on the Ultemate Vac, no mix-and-match potential here.
The matte black coating gives the pen a more refined, premium feel on the metallic parts.
The inner lining of the cap doesn’t get stuck in the barrel thread as often, and when it does, it either slips back into correct position, or it is easier to unscrew and reposition, without the metal thread eating into the cap material.
The coated, no-breather-hole design of the new Gravitas steel nib may not be to everyone’s taste, but I like it a lot, and functionally, this nib feels more bouncy and polished, with smoother writing than its predecessor.
The feed seems to pick up a lot more ink on its own from just a 5-second dip, and the small reservoir behind it looks to have more capacity to back it up before needing to unscrew the blind cap and refill it from the large reservoir.
The Kraken filling system seems to suck up significantly more ink per pump than the mechanism from the Ultemate Vac.

Overall, a very well made fountain pen, and a thorough refinement to an already excellent design. Very satisfied with this purchase!

Gravitas - Vac 2.0 Aluminium | Black