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

Measurements
Length (capped): 144.9 mm/5.71”
Length (uncapped): 129.0 mm/5.08”
Length (posted): N/A
Diameter (section): 10.2 – 11.4 mm/0.40 – 0.45”
Diameter (barrel): 12.0 – 15.0 mm/0.47 – 0.59”
Weight (all): 40.0 g
Weight (cap): 26.0 g
Weight (body): 14.0 g