Twsbi > Diamond 540

Twsbi diamond 540

The TWSBI Diamond 540 is a symbol of the renewed commitment that the manufacturer has made to fountain pen enthusiasts by improving upon the design of the wildly popular Diamond 530 fountain pen. TWSBI improved the ink capacity on the 540 significantly, while making a few minor changes to the fittings and parts on the pen. The Diamond 530 was voted the Goldspot Pen of the Year 2010.