Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - White Dial - Black Leather Strap - 329.33.44.51.04.001 Secret Caliber UN-816 self-winding movement with

Caliber UN-816 self-winding movement with self-winding

Chronograph

caliber 9300 self-winding movement with chronograph function

ensures optimal readability in various lighting conditions

Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - White Dial - Black Leather Strap - 329.33.44.51.04.001 Secret Caliber UN-816 self-winding movement 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, black leather strap. Water resistant to 50 m (167