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 Rolex calibre 3230 automatic movement

Rolex calibre 3230 automatic movement with center hour

Calibre 3120 selfwinding movement with dive-time measurement

white mother-of-pearl dial with a wavy pattern extending from the iconic claws and 12 diamond indexes

55mm thick

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 Rolex calibre 3230 automatic movement44. 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