The IWC Portugieser Chrono-Rattrapante ref. IW371211 includes a yellow gold (2N) case paired with a silver dial, released for a short period near the end of the 3712 series production.
Movement Type
Manual Chronograph
Caliber
76240Jewels
31
Reserve
44
Frequency
21600
Hands
No Seconds
Material
Yellow Gold
Glass
Sapphire
Thickness
12.30 mm
Diameter
40.90 mm
Water Resistance
30.00 m
Dial Color
Silver
