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Home Shop FP Bestsellers Gravitas - Sentry Delrin
GravitasSKU: TTP1

Gravitas - Sentry Delrin

€90,00 / Sold out
Tax not included. Shipping calculated at checkout.
5.0 (4 reviews)
Nib: Steel
Nib Size: Extra Fine
Gravitas - Sentry Delrin
€90,00 /
Nib: Steel
Nib Size: Extra Fine

 
 
Description

Meet the Sentry fountain pen, the larger sibling to the entry-level model from gravitas. The Sentry maintains a comfortable and user-friendly design, the Delrin version offer a more lighter option in the Sentry range due to having no metal elements besides the nib itself. With triple-start cap threads, the cap effortlessly disengages in just 2.25 turns.

The 25mm-long section, ranging from 13.25mm to 11.5mm in width, on this Delrin version, made from the same material as the rest of the pen - Delrin and adorned with micro-machined grooves, the section ensures a secure grip during every writing session including long ones. 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: White
- body material: Delrin + Delrin Section
- 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): 19 grams
- body weight: 15 grams
- cap weight: 4 grams

Specifications

Brand: Gravitas
Model: Sentry
Edition:
Color: White
Body Material: Delrin
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: 19 g
Body Weight: 15 g

Customer Reviews

Based on 4 reviews
Write a review
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B
Barry
Gravitas is a well made pen

This is not the first Gravitas pen that I own. The quality and tolerances are quite well done. This version of the Sentry is quite light, almost like you don't have a pen in your hand while writing. It came with a tuned fine nib, but was able to swap easily with a daily italic Jowo nib unit that I had purchased from my favorite nibmeister.

T
Terpez Paul Andrei
Best customers service ever

The pen is just perfect for me and writes like a dream.
Thank you, Emy.

S
SY
Pleasantly surprised

I am pleasantly surprised by this pen. I’ve read good reviews of this pen so decided to try it with the Delrin material. I was not disappointed. It is light but well balanced. It is comfortable to write with since it is thicker at the area where you hold the pen.
It is fast becoming one of my go-to pens!

J
João Veloso
👍

Another Sentry on my desk, perhaps the lightest foutain pen I own but very pleasant to use and abuse.

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© 2026 Pen Venture - Passion Virtuous,

Review picture
Isaac Leong
My wonderful first Titan pen

Beautiful colour. The nib is smooth and wet. The grip section is textured, I will not worry about writing with it in hot weather. This is my first demonstrator pen, I love watching the ink level drops (very slowly) in the barrel. The package is packed very securely. Thank you staffs at Pen Venture.

Fifty4T - Titan Slim Line Aluminium Emerald Shadow
★ Reviews

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877 reviews
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R
Gravitas - Vac 2.0 Aluminium | Black
Richard L Sherman
Gravitas Vac 2

The construction of the Vac 2 is flawless. The textures of the materials and it's simple lines display an elegant beauty. The large steel nib delivers a pleasant writing experience and also provides a bit of flex.

C
Gravitas - Vac 2.0 Aluminium | Black
Chris

Amazing Pen! Gravitas makes one of the best piston fillers out there. I dont keep the nib and normally use the pen for coustom flex nibs with Jowo #6 compatible nib units. So, i really cant speak on the nib. However, this pen is just built with high quality components. The weight, feel, and overall aesthetics are unmatched. You wont find better at this price point.

R
Platinum - #3776 Century Kaga Maki-e Sansui GT
Robert Moore
Platinum Sansui - Smooth Operator

I recently acquired the Platinum Maki-e Sansui pen in a Medium nib. The Pen Venture team was kind enough to carefully inspect and tune this pen before sending it on to me. Many thanks for that. It writes very smoothly and with a steady flow of ink. The Medium nib is my favorite nib configuration from the Platinum brand. The line width is nice and thin and always writes consistently right of the box. This lovely Maki-e pen was no different. I highly recommend it.

D
Gravitas - Steel Nib Unit Silver | No. 6
David Sumrell
Gravitas #6 extra fine nib

The extra fine nib came tuned to perfection—a joy to write with. Thank you Emy!

J
Gravitas - Vac 2.0 Aluminium | Black
Jimmie
FANTASTIC!

The VAC 2.0 is a great improvement to an already great pen (the original VAC Ultem). The weight and balance are spot on. The cap and the new threads engage without hesitation. No missed closures and the cap has a nice stop when threading back on. It posts securely without issue. Filling with the Kraken system is easy. I got a medium nib and it is smoooooooth. Mine is on par with my 823 medium nib The smoothness, wetness and bounce would make you think it's a gold nib. Line width is slightly narrower than the 823 medium. The pen feels solid and well built. I'm not worried about this one getting knocked around. Overall a great pen. Shipping from Pen-Venture to Colorado was five days! Great pen and service all around!

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