Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - White Dial - 329.30.44.51.04.001 Blue 18K Sedna gold bezel with

18K Sedna gold bezel with blue ceramic ring and tachymeter scale in Ceragold

grey rubber strap

caliber 1904-PS MC self-winding movement with calendar aperture at 3 o'clock and small seconds counter at 6 o'clock

blue strap

Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - White Dial - 329.30.44.51.04.001 Blue 18K Sedna gold bezel with44. 25 mm stainless steel case with antimagnetic design, transparent back, black ceramic bezel with tachymeter scale in white enamel, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, white 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