This pen was kindly sent to me by Martemodena – thank you!

Measurements
Length (capped): 137.9 mm/5.43″
Length (uncapped): 127.7 mm/5.02″
Length (posted): 156.0 mm/6.10″
Diameter (barrel): 11.4 – 13.7 mm/0.45″ – 0.54″
Diameter (section): 11.3 – 12.7 mm/0.44″ – 0.50″
Weight (all): 28 g
Weight (cap): 12 g
Weight (body): 16 g