Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Yellow Gold Case - Brushed Bezel - Silver Dial - Brown Leather Strap - 331.53.42.51.02.001 Annual calibre 1376 quartz movement with

calibre 1376 quartz movement with rhodium-plated finish

polished blue ceramic bezel

38 mm brushed stainless steel and 18K yellow gold case

sedna gold bezel

18K Sedna gold unidirectional rotating bezel with black ceramic inserrt featuring a Ceragold diving scale

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Yellow Gold Case - Brushed Bezel - Silver Dial - Brown Leather Strap - 331.53.42.51.02.001 Annual calibre 1376 quartz movement with41. 5 mm 18K yellow gold case, transparent back, brushed bezel with with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, silver dial, self winding chronometer Omega 9301 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, brown leather strap. Water resistant to 100 m.