Gravitas Sentry vulpen gefreesd uit Ultem

Gravitas built the Sentry as a step up in size from its entry-level pen, and this version comes machined from a solid rod of medical grade Ultem. That material takes real punishment without cracking or breaking. It also stays light in the hand for its size and shrugs off heat.

Flip the pen in the light and the satin, frosted texture lets you see the inner workings. Convert it to an eyedropper and the ink colour shows through the body — a neat trick you won't get from opaque barrels. The cap uses triple-start threads and comes free in 2.25 turns.

On the grip side, the section measures 25mm in length and narrows from 13.25mm to 11.5mm. It's made from 304 stainless steel in black PvD, cut with micro-machined grooves so your fingers keep their hold through a long page. A Gravitas-produced black size 6 steel nib handles the writing, compatible* with Jowo No. 6 threads and paired with an ABS plastic feeder. Nib widths run Extra Fine, Fine, Medium and Broad. Each pen ships with a standard international converter.

*Any nib swap is on you as far as fitment goes. We're not responsible for damage that results from using non-Gravitas nibs or nib units.

Pen Dimensions
- Length of Pen (with cap on): 146.3mm
- Length of Pen (with cap off from bottom to nib): 138.3mm
- Length of Grip Section: 42mm
- Actual weight: 2.5 oz
- Weight with Cap: 34g
- Weight without Cap: 28.34g

Specifications
- Type: Fountain Pen
- Body Material: Ultem
- Cap Type: Screw
- Filling Mechanism: Eyedropper / Cartridge / Converter
- Nib Material: Stainless Steel, #6
- Postability: Yes

Comes With
- Large Zippered Case
- Standard International Converter