IWC Schaffhausen Big Pilot’s Watch Perpetual Calendar Tourbillon Le Petit Prince

IWC Schaffhausen's Big Pilot's Watch Perpetual Calendar Tourbillon Le Petit Prince, reference IW504901, has a 46.5 mm ceramic case. The case measures 16.1 mm thick, and the crown is screwed in. A convex sapphire crystal with antireflective coating on both sides covers the blue dial, and a sapphire display back reveals the movement. Inside is the IWC-manufactured calibre 51950, a self-winding movement with 168 hours of power reserve and a flying minute tourbillon. The perpetual calendar shows the date, day, month and moon phase. This is a limited edition of 100 pieces, fitted to a blue rubber strap. IWC Schaffhausen rates the case to 100 metres.