Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Black Dial - Brown Leather Strap - 331.12.42.51.01.002 Size 41 mm steel case

41 mm steel case

black dial with an LCD display

slate grey movement

flat scratch-resistant sapphire crystal anti-reflective treatment on both sides

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Black Dial - Brown Leather Strap - 331.12.42.51.01.002 Size 41 mm steel case41. 5 mm stainless steel case, transparent back, brushed bezel with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial with beige transferred dial indications, 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.