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TWSBI Diamond 580 AL Fountain Pen
TWSBI Diamond 580 AL Fountain Pen
All about nib sizes
Special version of the TWSBI Diamond 580 that features aluminium piston parts and an anodised aluminium grip section.
Length capped = 142mm
Nib length = 18.2mm
Section length = 21mm
Section diameter (max/min) = 10.0/9.3mm
Barrel diameter (max) = 13.1mm
Total length (not posted, including nib) = 129mm
Total length posted (including nib) = 175mm
Weight = 29g
Nib material: stainless steel
Filling mechanism: piston