IWC Da Vinci Perpetual Calendar Chronograph Watch - 43.0 mm Stainless Steel Case - Slate Dial - Black Alligator Strap - IW392103 Jules Millenary a self-winding mechanical movement with

a self-winding mechanical movement with bidirectional rotor system that allows a power reserve of approximately 70 hours

diamond-set 18k red gold bezel

Its integrated bracelet is crafted from steel and 18-ct gold with satin-brushed external and central links and polished intermediate links for a versatile touch

leather strap

IWC Da Vinci Perpetual Calendar Chronograph Watch - 43.0 mm Stainless Steel Case - Slate Dial - Black Alligator Strap - IW392103 Jules Millenary a self-winding mechanical movement with43. 0 mm stainless steel case, 15. 7 mm thick, see through sapphire glass back, arched edge sapphire glass crystal with antireflective coating on both sides, slate coloured dial, calibre 89630 automatic movement with date, day, month, perpetual calendar, year indicator, chronograph, flyback, hours, minutes, small seconds, moonphase, approximately 68 hours of power reserve, black alligator leather strap by santoni. Water resistant to 3 bar.