Skip to content

🚀 Our new website is live - improved and better than ever! More changes are soon to follow!

  • Brands
  • Fountain Pens
  • Pens
  • Pencils
  • Inks
  • Accessories
  • Paper
  • Refills
  • Creative
  • New Arrivals
  • Gift Sets
  • Bottom Shelf
  • Pages
Pen Venture - Passion Virtuous
Spend €800 more for FREE shipping.
FREE shipping will be applied at checkout

Your cart is empty

Continue shopping
0Cart(€0,00)
  • Brands
    • A-C
      • Amodex
      • Aurora
      • Ballograf
      • Blackwing
      • Caran d'Ache
    • D-G
      • Diamine
      • Fifty4T
      • Graphilo
      • Gravitas
    • H-K
      • Iroful
      • Jacques Herbin
      • KUM
    • L-N
      • LAMY
      • Leonardo
      • Life
      • Maruman
      • Masuya Monokaki
      • Montegrappa
      • Namiki
    • O-R
      • Parker
      • Pilot
      • Pineider
      • Platinum
      • Radius
      • Retro 51
      • Rotring
    • S-U
      • Sailor
      • Scribo
      • Scrikss
      • Stipula
      • Taccia
      • Teranishi
      • Tombow
      • Tomoe River
      • Tsubame
    • V-Z
      • Visconti
      • Waterman
  • Fountain Pens
    • All Fountain Pens
    • Entry-Level
    • Mid-Range
    • Premium
    • Pen Venture Exclusive
  • Pens
    • All Pens
    • Ballpoint Pens
    • Rollerball Pens
    • Multi-Function Pen
  • Pencils
    • All Pencils
    • Classic Pencil
    • Mechanical Pencils
    • Pencil Accessories
  • Inks
    • All Inks
    • Inks by Packaging
      • Bottled Inks
      • Ink Cartridges
      • Ink Sets
    • Inks by Characteristics
      • Standard
      • Permanent
      • Sheen
      • Shimmering
  • Accessories
    • All Accessories
    • Spare Nibs
    • Converter
    • Pen Cases
    • Pen Maintenance
    • Cleaning
  • Paper
    • All Paper
    • By Brand
      • Graphilo
      • Iroful
      • Tomoe River
      • Tsubame
      • Masuya Monokaki
      • Life
    • By Type
      • Notebooks
      • Notepads
      • Loose Sheets
      • Memo Pads
      • Blocknotes
      • Envelope
      • Greeting Card
      • Letter Set
      • Letter Pad
    • By Ruling
      • Blank
      • Ruled
      • Dotted
      • Grid
  • Refills
    • Ballpoint Pen Refills
    • Mechanical Pencils Refills
    • Classic Pencil Refills
    • Multi-Function Pen Refills
  • Creative
    • Special Ink
    • Other Accessories
  • New Arrivals
  • Gift Sets
  • Bottom Shelf
  • Pages
    • About Us
    • Terms of Service
    • Shipping Policy
    • Refund Policy
Home Shop FP Bestsellers Gravitas - Quark Titanium Pocket Pen
GravitasSKU: GP-FP-QK-G5TI-11/SI-SN6

Gravitas - Quark Titanium Pocket Pen

€85,00 /
Tax not included. Shipping calculated at checkout.
5.0 (5 reviews)
Nib: Steel
Nib Size: Extra Fine
Gravitas - Quark Titanium Pocket Pen
€85,00 /
Nib: Steel
Nib Size: Extra Fine

 
 
Description

Introducing the Quark, a pocket fountain pen that redefines compact convenience without compromising on performance. The entire pen is made from grade 5 titanium making it one of the most robust yet lighter weight in the Quark metal line up and the titanium section features micro machined grooves for a solid grip when used.

Crafted to be the tiniest pen of its kind, the Quark transforms into a full-sized writing instrument when posted. Its lightweight design and ergonomically weighted section ensure a comfortable and effortless writing experience.

Featuring the new ACME double-start cap threads that offers a smoother capping and posting action, increase wear resistance and improved seal, the Quark effortlessly unveils its nib with just 0.6 turns. When posted, the cap securely threads onto the back in a mere 2 turns. The 22mm-long section, ranging from 9.85mm to 9.0mm in width, is precision-engineered from grade 5 material with micro-machined grooves and a bead-blasted finish.

Equipped with a Gravitas-production size 6 steel nib compatible with Jowo No. 6 threads and abs plastic feeder, the Quark offers versatile writing options, including Extra Fine, Fine, Medium, Broad and Fine Flex.

This pen is eye-dropper friendly, capable of holding up to 1.5ml of ink or a standard international ink cartridge. Every Quark includes a complimentary attachment, designed for conveniently securing your item to a lanyard or any carrying accessory, ensuring ease and comfort in your collection.

Elevate your writing experience with the Quark Pocket Pen – where compact meets functionality.

Specifications:

- brand: Gravitas
- type: Fountain Pen
- color: Silver
- body material: Grade 5 titanium
- cap type: Screw-cap
- filling mechanism: Eyedropper / Standard International Cartridge
- nib material: Steel
- nib size: Extra Fine, Fine, Medium, Broad, Fine Flex
- postable: Yes (screw to post)
- trim: Silver color
- length overall (closed): 85 mm.
- length overall (posted): 134 mm.
- body length: 82 mm.
- cap length: 58 mm.
- body diameter: 9,8 mm.
- cap diameter (without clip): 11 mm.
- weight (overall): 17 grams.
- body weight: 10 grams.
- cap weight: 7 grams.

Specifications

Brand: Gravitas
Model: Quark
Edition:
Color: Silver
Body Material: Metal
Finish:

Cap Type:
Screw
Filling Mechanism:
Cartridge Only
Postable:
Yes
Trim Color:
Length Overall (Closed): 85 mm
Length Overall (Posted): 134 mm
Body Length (Uncapped):
82 mm
Body Diameter: 9.8 mm
Cap Diameter (Without Clip): 11 mm
Weight Overall: 17 g
Body Weight: 10 g

Customer Reviews

Based on 5 reviews
Write a review
100%
(5)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
B
Bartók Csaba
The Ultimate Workhorse for the Pocket

Since this isn’t my first time using a Quark, I knew exactly what to expect, but I wanted something even tougher for work—a pen I wouldn't have to baby. In a moment of inspiration, I decided to treat myself to the Quark Titanium, and I haven't regretted it for a second.
Form & Function

The portability is where this pen truly shines. It is incredibly compact to carry, yet the moment you post the cap, the length becomes perfect. It feels balanced and sits naturally in the hand, making it a joy to use despite its small footprint.
Quality & Craftsmanship

I’ll be honest: my handwriting still isn’t the most beautiful, but this pen makes me want to write more regardless. The build quality is exceptional and clearly well-thought-out. Simply put, it’s a brilliant piece of engineering.
Verdict

I can highly recommend it to anyone looking for a reliable, "buy-it-for-life" pocket pen. Keep up the amazing work, Ben, and a huge thanks to Emy for the help!

Warm regards from Germany – a Szekler abroad.

C
C.B.
A sleek little pen.

The Quark line of Gravitas pens are such a cool lineup and the Titanium version is great when you want your tiny little pen to have a slick shine to it. The threads for capping and posting feel very secure. Having a proper #6 nib in such a portable form factor that doesn't sacrifice writing comfort when posted is almost too good to be true. All in all, a very solid pen for EDC that doesn't cut corners on quality.

P
Peter Steart
Quark titanium pocket fountain pen

A pocket sized pen with a number 6 nib. Cap screw posts on the back of the barrel making the small pen a longer pen which fits into the hand very comfortably. The cap however does not screw tightly onto the back of the barrel - there is some play with the cap and can feel slightly loose when screwed in place.
The #6 steel fine nib is very smooth in use and the front section has a nice textured finish which helps keep your fingers in position while writing. This is my second Gravitas pen and I am very happy with both pens so far.

J
Juris
"GOAT" from the small ones

this pen to me is the Greatest of all time from all the small pens i tried.
it writes like a dream (even better than many big pens, at least I feel my writing with this pen is most beautiful if that is even a term) which is most important. It is also the smallest pen I have, it is cheap, it is well built from the toughest materials. best for EDC. btw I have also some other small pocket pens with a clip and sometimes you need to find the right way how to screw the cap on the back to have the clip facing up to not bother you when you write. this pen does not have a clip = no problem :)

K
Kevin West
Small and perfectly formed

Since receiving my Gravitas Quark Up Titanium pen I have a new favourite every day carry pen. It has just edged out my Gravitas Pocket pen, which I thought would be the smallest I would find usable, but I was wrong. The Quark Up feels perfect in the hand and the fine nib is perfect lying down a good amount of ink and feeling very smooth.

Info
  • Contact
  • About Us
  • Terms of Service
  • Privacy Policy
  • Shipping Policy
  • Refund Policy
  • Legal Information
Socials
Newsletter

Subscribe to our newsletter for the latest updates, tips, and offers!

American Express
Apple Pay
Bancontact
Google Pay
iDEAL Wero
Maestro
Mastercard
PayPal
Shop Pay
Union Pay
USDC
Visa

© 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

Let customers speak for us

877 reviews
Write a review
92%
(808)
6%
(54)
1%
(6)
1%
(5)
0%
(4)
838
49
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!

123