The Big Pilot's Watch Perpetual Calendar ProSet combines an 18-carat 5N gold case and crown with an olive green dial with a sunray finish. The Perpetual Calendar ProSet can be adjusted both forwards and backwards via a single crown position, making calendar adjustments as simple and intuitive as setting the time.

Overview
Reference: IW329602
Dial Color: Green
Case: 18 ct 5N gold
Strap: Green buffalo leather strap View all compatible straps
Diameter: 42 mm
Movement: Automatic, self-winding, IWC-manufactured movement

Features
Sapphire glass, convex, antireflective coating on both sides
Central hacking seconds
Glass secured against displacement by drop in air pressure
Pellaton automatic winding
Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase

Case
Strap width: 21 mm
Buckle width: 18 mm
Case: 18 ct 5N gold
Diameter: 42 mm
Height: 14 mm
Water Resistance: 10 Bar
Crown: Screwed-in
Back case: With synthetic sapphire crystal

Movement
Caliber: 82665
Movement type: Automatic, self-winding
IWC-manufactured movement: Yes
Power Reserve: 60 hours
Frequency: 28800 Vph (4 Hz)
Components: 283
Jewels: 34