TWSBI Obsidian Fountain Pen

By TWSBI
$201.00
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06 Feb. Estimated arrival
03 Feb. Order placed
04-05 Feb. Order dispatches
06 Feb. Delivered!
🚚 Order within the next 2 hours, 15 minutes for delivery by 06 Feb, 2026.
Description

The TWSBI Obsidian Fountain Pen is what happens when dependable engineering meets a touch of geological drama. Its marbled dark resin body takes its cue from obsidian—deep, mysterious, and rather captivating—yet never at the expense of everyday practicality. You get a smooth piston-filling mechanism, a clear ink window, and a writing experience that always feels balanced and confidently consistent.

Pick it up for journalling, note-taking, or the occasional burst of late-night brilliance; the Obsidian never complains and never runs dry without warning. Whether you’re edging into the world of fountain pens or adding another gem to an already healthy collection, this TWSBI design offers beauty, sturdiness, and ease in equal measure.

Clever Details That Count

  • Ink you can rely on: The piston-filling system gives you generous capacity, so you don’t stop mid-thought—or mid-sentence—ever again.

  • A body with quiet allure: The marbled resin shell brings depth and character without tipping into showiness, offering comfort and durability for all-day writing.

  • Clarity when you need it: The ink window keeps you informed at a glance, meaning you never gamble on how much ink remains.

Details

  • Sizes: Extra Fine, Fine, Broad, Medium
  • Material: Resin, Steel
  • Country of Origin: Taiwan

The TWSBI Obsidian Fountain Pen is what happens when dependable engineering meets a touch of geological drama. Its marbled dark resin body takes its cue from obsidian—deep, mysterious, and rather captivating—yet never at the expense of everyday practicality. You get a smooth piston-filling mechanism, a clear ink window, and a writing experience that always feels balanced and confidently consistent.

Pick it up for journalling, note-taking, or the occasional burst of late-night brilliance; the Obsidian never complains and never runs dry without warning. Whether you’re edging into the world of fountain pens or adding another gem to an already healthy collection, this TWSBI design offers beauty, sturdiness, and ease in equal measure.

Clever Details That Count

  • Ink you can rely on: The piston-filling system gives you generous capacity, so you don’t stop mid-thought—or mid-sentence—ever again.

  • A body with quiet allure: The marbled resin shell brings depth and character without tipping into showiness, offering comfort and durability for all-day writing.

  • Clarity when you need it: The ink window keeps you informed at a glance, meaning you never gamble on how much ink remains.

Details

  • Sizes: Extra Fine, Fine, Broad, Medium
  • Material: Resin, Steel
  • Country of Origin: Taiwan
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Delivery & Returns

 

Orders £35+ UK Royal Mail delivery within 5 days, Monday to Friday. Free on orders over £35.  FREE
Tracked Delivery 48

Royal Mail 48, tracked. Delivery within 48 hours, Monday to Friday. Tracking number provided.

£3.99
Tracked Delivery 24

Royal Mail 24, tracked. Delivery within 24 hours, Monday to Friday. Tracking number provided.

£4.99
Next Day Delivery Delivery on the following working day on orders purchased before 12:00pm, 5 days a week. You'll receive a tracking number with updates about the progress of your order. Signature required.

£7.99

International Delivery

Shipping costs are calculated automatically at the checkout when both the destination and delivery service are selected.

Calculated at checkout
Customs & Import Charges In some cases, customs and import duties may be charged as your parcel reaches its destination country. The Journal Shop has no control over these charges and we can't tell you what the cost would be, as they will vary from country to country. Any charges on a parcel must be paid by the person receiving the parcel. To be paid by customer