Chronomat B31 Automatic 40

Movement
Caliber
Breitling B31 (Manufacture)
Movement
Self-winding mechanical
Power Reserve
Approx. 78 hrs
Vibration
28,800 v.p.h
Calendar
Dial aperture

Case
Case Material
Stainless steel
Water Resistance
20 bars (200 m/660 ft)
Crystal
Sapphire

Dimensions
Product Weight (Approx.)
140 g
Diameter
40 mm
Thickness
10.99 mm
Lug Width (in-between lugs)
18.05 mm

Strap
Strap Material
Stainless steel
Strap Colour
Metal bracelet
Strap Type
Straight
Lug
20 mm