The TWSBI Diamond 580ALR Piston Filler Fountain Pen – Prussian Blue takes the classic Diamond 580 design and upgrades it with premium materials for the serious writer. While retaining the famous diamond-faceted barrel, this "ALR" version replaces standard plastic components with durable machined aluminum.
The standout feature of this model is the ribbed aluminum grip section. Unlike smooth plastic pens that can become slippery during long writing sessions, the matte textured finish provides a secure, tactile hold for superior control. The matching Prussian Blue aluminum piston mechanism and cap band give the pen a cohesive, understated elegance.
Ideally suited for bottled ink enthusiasts, it features a high-capacity piston filling mechanism that holds approximately 1.9ml of ink—nearly 3x the capacity of a standard converter. The clear body lets you see your ink level at a glance, turning the liquid inside into a visual part of the pen's design.
True to TWSBI’s philosophy, the pen arrives in a presentation box with a wrench and silicone grease, giving you the freedom to disassemble and maintain your tool for years of reliable use.
In Stock & Ready
Every tool is personally dispatched from our hubs within 48 hours (2 business days).
Standard Tracking (Registered Airmail)
Expedited Priority (FedEx/DHL)
Our Logistics Commitment
Orders are handled at our precision fulfillment centers in Hong Kong or Taiwan. For our US community, we absorb import tariffs on Standard Shipping to keep rates fair.
*Note: US Expedited couriers invoice recipients directly for individual customs clearance and administrative fees (typically ~USD 30).
Rates are listed in USD; our system automatically converts these to your local currency at checkout.
