IWC Portugieser Automatic Watch - 42.3 mm Stainless Steel Case - Silver Dial - Black Alligator Strap - IW500712 Et caliber 2500 self-winding movement with

caliber 2500 self-winding movement with chronometer and co-axial escapement movement

the moon and the number 17

the intense black and champagne dial

Black waffle dial

The Sky-Dweller boasts a remarkable annual calendar and dual-time zone feature

IWC Portugieser Automatic Watch - 42.3 mm Stainless Steel Case - Silver Dial - Black Alligator Strap - IW500712 Et caliber 2500 self-winding movement with42. 3 mm stainless steel case, 14. 2 mm thick, see through sapphire glass back, convex sapphire glass crystal with antireflective coating on both sides, silver plated dial, calibre 52010 automatic movement with date, hours, minutes, small seconds, power reserve indicator, approximately 168 hours of power reserve, black alligator leather strap. Water resistant to 3 bar.