Delivery starts on the 9th of Sept 2021
TWSBI pens made by one of Taiwan's most experience pen maker who started out as a contract manufacturer. The Diamond features a clear demonstrator body with a piston filling mechanism; these attributes combined with its low price make for a very enticing pen. New aluminium machine grip, connector and piston rod. The body is made of a round clear plastic allowing you to see the internal piston mechanism and the feed. Improved grip and end barrel section compared to 540, 580 has increased ink capacity, about 30% more than 530, 580 has improved the smoothness of cap thread turning
This is a one time production color in Navy Blue finish.
This pen come with 1 cap only.
Length with cap close - 14.1cm
Length with cap posted - 17.5cm
Central circumference - 4.2cm
Sytem: Fountain pen uses Piston-filled ink.
Nib type: Steel nib
1 Review Hide Reviews Show Reviews
This is my first TWSBI pen and I find the nib is so smooth, almost similar to gold nibs. The pen size is just perfect for my hand and is very well balanced un-posted. The ink capacity is excellent.