Check Out Our Exclusive Collection
Our ever popular 580 now comes with aluminum parts. New aluminum machined grip, connector, and piston rod.
TWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen.
The TWSBI Diamond 50mL ink bottle is a glass bottle with anodized aluminum top that is the perfect accessory for any fountain pen addict! (No ink inside)