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.Let’s have a look at two Montblanc 145 Classique pens, both of which are Le Petit Prince themed: the platinum trim 145 and the platinum trim 145 Doué.

Measurements (Classique)
Length (capped): 138.7 mm/5.45″
Length (uncapped): 122.0 mm/4.80″
Length (posted): 153.8 mm/6.04”
Diameter (section): 8.3 – 10.4 mm/0.32″ – 0.40″
Diameter (barrel): 10.5 – 11.7 mm/0.41″ – 0.46″
Weight (all): 24 g
Weight (cap): 8 g
Weight (body): 16 g

Measurements (Doué)
Length (capped): 139.4 mm/5.49″
Length (uncapped): 122.1 mm/4.80″
Length (posted): N/A
Diameter (section): 8.5 – 10.4 mm/0.33″ – 0.41″
Diameter (barrel): 10.3 – 11.8 mm/0.40″ – 0.46″
Weight (all): 52 g
Weight (cap): 19 g
Weight (body): 33 g