IWC Big Pilot's Watch Perpetual Calendar | IW503605

Caractéristiques

• Mechanical movement
• Pellaton automatic winding system
• 7 days power reserve
• Power reserve display
• Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase for both Northern and Southern Hemispheres
• Small hacking seconds
• Screw-in crown
• Sapphire glass, arched edge, anti-reflective coating on both sides
• Glass secured against displacement caused by drops in air pressure
• See-through sapphire glass back