IWC Big Pilot’s Watch Perpetual Calendar - Stainless Steel Case - Blue Dial - Blue Calfskin Strap - IW503605 Tourbillon 42 mm 18K yellow gold

42 mm 18K yellow gold case

engraved back

blue dial with mega tapisserie pattern

7mm 18K pink gold case

IWC Big Pilot’s Watch Perpetual Calendar - Stainless Steel Case - Blue Dial - Blue Calfskin Strap - IW503605 Tourbillon 42 mm 18K yellow gold46. 2mm stainless steel case, 15. 4mm thick, see through sapphire glass back, screw in crown, convex sapphire glass crystal with antireflective coating on both sides, blue dial with luminescence, calibre 52615 automatic movement with date, day, month, perpetual calendar, year indicator, hours, minutes, small seconds, moonphase, power reserve indicator, approximately 168 hours of power reserve, blue calfskin strap. Water resistant to 6 bar.