TWSBI Diamond 580 Fountain Pen / Clear
TWSBI · sold by The Gentleman Stationer · $55.99 · in stock

The TWSBI Diamond 580 Clear is TWSBI’s classic fountain pen featuring a piston ink-filling system and swappable nib units. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, TWSBI has created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with all detachable parts, as TWSBI felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen (though no disassembly is required…
| Option | Price | Stock | |
|---|---|---|---|
| Extra Fine | $55.99 | in stock | Buy at The Gentleman Stationer → |
| Fine | $55.99 | out of stock | |
| Medium | $55.99 | in stock | Buy at The Gentleman Stationer → |
| Broad | $55.99 | in stock | Buy at The Gentleman Stationer → |
| 1.1mm Stub | $55.99 | in stock | Buy at The Gentleman Stationer → |
Prices and stock from shop.gentlemanstationer.com’s public catalog, last checked 2026-11-01 08:05 UTC; the store’s checkout shows the final price. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:a2572754-fe0f-4a8d-86c1-fa0e4cda0feb; buy with POST /v1/checkout or MCP create_checkout.