Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - Black Dial - 329.30.44.51.01.001 Mesh polished screw-in crown

polished screw-in crown

black ceramic dial

beige rubber strap

42mm 18K Everose gold case

Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - Black Dial - 329.30.44.51.01.001 Mesh polished screw-in crown44. 25 mm stainless steel case with antimagnetic design, transparent back, black ceramic bezel with tachymeter scale in liquidmetal, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial with racing style minute track, caliber 9900 self winding Co Axial master chronometer movement with chronograph and date functions, approximately 60 hours of power reserve, stainless steel bracelet. Water resistant to 50 m