Ref. IW3712-07 is a limited edition Portuguese Chrono-Rattrapante totaling 100 units, notable for its sapphire caseback.
Movement Type
Manual Chronograph
Caliber
76240Jewels
31
Reserve
44
Frequency
21600
Hands
No Seconds
Material
Stainless Steel
Glass
Sapphire
Thickness
12.30 mm
Diameter
40.90 mm
Water Resistance
30.00 m
Dial Color
Silver
