This pen was lent to me by my friend Hélène (who is very nice, but has too many diacritics in her name ;-)).

Measurements
Length (capped): 149.1 mm/5.87″
Length (uncapped): 134.3 mm/5.28″
Length (posted): N/A
Diameter (section): 11.0 – 13.2 mm/0.43″ – 0.52″
Diameter (barrel): 12.0 – 14.5 mm/0.47″ – 0.56″
Weight (all): 46.5 g
Weight (cap): 16.5 g
Weight (body): 30 g