IWC Schaffhausen Big Pilot's Watch Perpetual Calendar Ceralume®

The IWC Schaffhausen Big Pilot's Watch Perpetual Calendar Ceralume® IW505801 has a case measuring 46.5 mm across and 15.9 mm thick, made from Ceralume® ceramic. This is a limited edition of 250 pieces. The crown is a screw-down type. The white dial sits under a convex sapphire crystal with antireflective coating on both sides. An IWC-manufactured automatic calibre 52616 drives the watch, with a power reserve of 168 hours shown on a dedicated display. The perpetual calendar shows date, day, month and year alongside a moon phase display and small seconds. IWC Schaffhausen rates the case to 100 metres. This watch uses a white rubber strap, and the display back reveals the movement.