Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Blue Dial - Brown Leather Strap - 331.12.42.51.03.001 Coral white mother-of-pearl dial with 18K

white mother-of-pearl dial with 18K red gold-plated indexes and roman numerals at the 6-9 and 12 o'clock positions

screw-down back with Rolex fluting

Model- Ventura

bezel with engraved tachymetric scale

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Blue Dial - Brown Leather Strap - 331.12.42.51.03.001 Coral white mother-of-pearl dial with 18K41. 5 mm stainless steel case, transparent back, brushed bezel with with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, blue dial, self winding chronometer Omega 9300 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, brown leather strap. Water resistant to 100 m.