Reference
431
Case Material
Steel
Case Diameter
55.0mm
Case Height
17.5mm
Water Resistance
N/A
Caliber
52T-SC
Manufacturer Movement
Yes
Power Reserve
N/A
Launch Year
1940
Dial Color
Black
Strap
Brown calfskin with rivets
Lug Width
N/A
Strap Reference
N/A
Limited Edition
1000 pieces produced