This pen was kindly lent to me by Joost Appelboom. Don’t forget to click the Appelboom banner on the right to obtain a 10% discount on your order (excluding Montblanc).

Measurements
Length (capped): 135.4 mm/5.33”
Length (uncapped): 122.3 mm/4.82”
Length (posted): 147.2 mm/5.80”
Diameter (section): 9.4 – 9.8 mm/0.37” – 0.39”
Diameter (barrel): 11.2 – 12.7 mm/0.44” – 0.50”
Weight (all): 36.5 g
Weight (cap): 16.5 g
Weight (body): 20.0 g