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Home Shop Gravitas Brand Gravitas - Quark Zirconium Stone Washed Pocket Pen | New |
GravitasSKU: GP-FP-QK-ZI-3/BK-SN6

Gravitas - Quark Zirconium Stone Washed Pocket Pen | New |

€125,00 /
Tax not included. Shipping calculated at checkout.
4.63 (19 reviews)
Nib: Steel
Nib Size: Extra Fine
Gravitas - Quark Zirconium Stone Washed Pocket Pen | New |
€125,00 /
Nib: Steel
Nib Size: Extra Fine

 
 
Description

Introducing the updated Quark Zirconium pocket fountain pen that redefines compact convenience without compromising on performance. The new Zirconium Quark still maintains its use of zirconium for the cap, body and section featuring the same satin texture having a unique tactile feeling. Different from the first version, the new Quark Zirconium sports a blacked-out section, new ACME threads making it easy to post and securely capped without having the need for a rubber o ring.

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 double-start cap threads, 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 zirconium material with micro-machined grooves for added grip.

Equipped with a Gravitas-production size 6 steel nib - silver color, 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: Dark Grey
- body material: Zirconium
- 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): 24 grams.
- body weight: 14 grams.
- cap weight: 10 grams.

Specifications

Brand: Gravitas
Model: Quark
Edition:
Color: Black
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: 24 g
Body Weight: 14 g

Customer Reviews

Based on 19 reviews
Write a review
79%
(15)
16%
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100.0
100.0
J
Jamie Rees
The perfect pocket pen!

I'm typically not a pocket pen person, but as a worker in the nuclear industry, the allure of zirconium was too great to resist. I had nothing to worry about, as the pen is perfectly balanced when posted and very similar in feel to my trusty Fisher Space Pen, with slightly more heft.
The extra-fine nib arrived wonderfully tuned with just the right amount of feedback and when eye-droppered, the flow is juicy without being too wet.
Plus, that zing really is unique and worth the price of admission by itself!

S
Scott Y
Quark, xf

Skipped so much I had to replace the nib unit with parts from my storage. Quite disappointing. The cap now screws on, I preferred the slip cap. It's faster. It's working now but I won't be spending any more money on gravitas.

A
Alex
Love the "zing"

To be fully honest, I bought the pen for the interesting material and for the awesome sound it makes. Ordered it in broad and as expected, it's a pleasure to write with. Will carry with it daily to impress and annoy my friends at work :)

C
C.B.
Perfect for even the tiniest pocket.

I picked up the Quark Zirconium with a fine nib to act as a counterpart to a Pocket Zirconium and ended up enjoying this tiny pen quite a lot more than I had expected to. While I typically gravitate towards medium nibs, I felt like the Quark was a perfect time to opt for a fine, and it made quite the impression.
I admittedly still prefer medium nibs for day to day use, I appreciate having the option to write just a bit finer And with the Quark, that option is always just a couple of seconds away. The threads for capping and posting are easy to start and feel very secure.
Then there's that splendid ringing you can get out of this little pen. It's something so simple but it always brings a smile to my face.

F
Frank
A good pen as well as good customer service

I don't think I can edit my previous review but I will explain the context briefly. When the Quark arrived it was just as I expected except for an odd issue where the nib was inconsistantly feeding ink onto paper. After leaving a review, Emy contacted me and started working to resolve the issue. In the end, a replacement nib unit was sent to me in addition inside another order I had placed, works great. It was a bit of a pain in the neck to deal with but Emy was very professional and was looking to make things right.
That being said, I'm pretty happy with the Gravitas Quark. With it being a pocket pen, it's nice to carry with me at work for any writing/notes I have to take. Feels nice in the hand, threads in the cap as well as the threads on the end for posting take about one rotation.

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© 2026 Pen Venture - Passion Virtuous,

Review picture
Destiny Smith
If the Monster and the Vac 1.0 had a Love Child...

...this would be it! To be completely honest, the Monster's DNA is clearly the dominant factor in this creation! As a matter of fact, it might be more accurate to call this pen the Baby Monster, instead of "Vac 2.0". There are only a few characteristics of the Vac 1.0 that were passed on, such as having an Ultem ink window on the secondary ink reservoir. Speaking of which, shouldn't the "Primary" ink reservoir be the one that connects directly to the nib unit? The back up, or reserve reservoir should be the "Secondary" reservoir, since it feeds the primary reservoir, not the nib unit, but...whatever. Other characteristics inherited from the Vac 1.0 are the conical finials on the cap and barrel, as well as a #6 size nib. Ink capacity of the Vac 2.0 is more than the Vac 1.0, but less than the Monster; at 4.5 ml, it's more than enough to get you through an all night session of writing, maybe even all week!
The nib...unlike other Gravitas nibs, doesn't have a breather hole, and the slit is longer. The metal also may be thinner than other Gravitas #6 nibs, which in combination with the longer slit, may give this nib a bit more flexibility. My nib is very smooth! Ink flow is a little bit less than the Monster's, but more than the Vac 1.0's, and is consistent and predictable with Pelikan 4001 Royal Blue ink.
Fun fact: the ink uptake hole (where ink goes into the pen when you fill it) is located on the underside of the feed, pretty close to where the feed disappears into the grip section. It's like that with almost every fountain pen that's designed to suck ink out of an ink well/bottle. The only one I know of that has the hole way forward toward the tip of the nib is the Lamy 2000. How does that affect you? The farther the nib sticks out from the grip section, the higher up that hole sits from the nib's tip, and the more ink needs to be in the bottom of the ink well to make sure that the pen sucks up ink, not air. The #6 nib sticks out about 7/8" (22mm), the #8 nib (of the Monster) sticks out about 17/16" (27mm). So, unless you plan on transferring your favorite ink into tall, thin ink bottles (like Robert Oster ink bottles), use an ink miser or ink sample bottle, or get creative with an ink syringe, the smaller sized nib of the Vac 2.0 allows you to get more ink out of your bottle before the rest becomes unreachable. With a little patience, practice, and an ample supply of paper towels, you can fill almost any piston filler or vac filler with an ink syringe as if the pen was an eyedropper filler, as long as you can remove the grip section and squirt the ink directly into the barrel. Some pens won't let you remove the grip section, but you can unscrew the nib unit, which will also give you direct access to the ink chamber(s). Vac fillers are more difficult to fill like that, because the piston has to be pushed all the way forward, and then retracted just far enough to allow ink to flow around and behind the piston to fill the ink chamber. If you were to fill it with the piston all the way in the back, you'd just expel all of the ink as soon as you push the piston forward again.
I love that Vac 2.0 has a second ink window, which lets me know when I need to open up the big ink chamber to allow ink to fill the little in chamber. I love the smaller nib, which allows me to better access to ink in bottles that are less than half full. I love how smooth the nib writes, and that the line width is actually pretty close to the nominal "Fine" standard (0.3mm, +/- 0.1mm). I love that the cap and pen body are now mated with titanium threaded parts, with ACME threads, so there isn't the constant feeling of cross threading the Ultem plastic, like every time I put the cap back on my Vac 1.0. I'm still careful whenever I screw the cap on any of my pens, regardless of material or brand, but I'm extra careful with threads on my non metal pens.
So, if like the Vac 1.0, you're going to love Vac 2.0, because I believe all of the Vac 1.0's shortcomings were addressed. If you thought you might like the Monster, but thought it's too big or pricey for you, the Vac 2.0 is the perfect fit. Still more ink capacity than most fountain pens, including many dedicated eyedropper pens, yet almost the same size as a regular full size pen. Robust construction, high quality materials, flawless fit and finish.

Picture shows (from left to right):
Gravitas Sentry in Ultem
Ultemate Vac (Vac 1.0)
Vac 2.0
The Monster

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★ Reviews

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903 reviews
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A
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Simply fantastic!

Feels great, writes well! I love the Ultem and titanium!

A
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