Kind thanks to Joost from Appelboom Pennen, who lent me this pen.  If you shop at Appelboom, use the discount code in the banner below (‘friend’) for 10% off your purchase – excluding Montblanc.

Measurements
Length (capped): 140.1 mm/5.51″
Length (uncapped): 128.8 mm/5.07″
Length (posted): 158.8/6.25”
Diameter (section): 10.1 – 12.2 mm/0.40″ – 0.48″
Diameter (barrel): 7.5 – 14.6 mm/0.30″ – .58”
Weight (all): 43 g
Weight (cap): 11 g
Weight (body): 32 g