Omega Speedmaster Mark II Co-Axial Chronograph Watch - 42.4 mm Barrel-Shaped Polished And Brushed Steel Case - Matt Black Dial - Steel Bracelet - 327.10.43.50.01.001 Deep 18K white gold gred in

18K white gold gred in the form of Roman numerals

steel octagonal crown set with a faceted synthetic spinel

brown leather NATO strap

black alligator strap

Omega Speedmaster Mark II Co-Axial Chronograph Watch - 42.4 mm Barrel-Shaped Polished And Brushed Steel Case - Matt Black Dial - Steel Bracelet - 327.10.43.50.01.001 Deep 18K white gold gred in42. 4 mm x 46. 2 mm barrel shaped polished and brushed stainless steel case, caseback engraved with the Seahorse medallion, flat scratch resistant sapphire crystal with anti reflective treatment both sides, matt black dial, self winding chronometer Omega 3330 movement with chronograph, small seconds, and date, approximately 52 hours of power reserve, stainless steel bracelet. Water resistant to 100 m.