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 Museum 55 x 48 mm titanium

55 x 48 mm titanium case with helium escape valve

BRAND Audemars Piguet SERIES Royal Oak Concept Gmt Tourbillon MODEL NUMBER 26588IO

Case diameter: 39 mm

radiant diamond-set bezel

Caliber Omega 8401 self winding movement with co-axial escapement

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 Museum 55 x 48 mm titanium41. 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.