Omega Style No: 123.20.38.21.02.006 Omega Constellation Co-Axial Master Chronometer Watch - 38 mm Steel And Yellow Gold Case - White -Silvery Dial - Brushed Steel Bracelet

38 mm stainless steel and 18K yellow gold case, transparent back, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, white opaline-silvery dial with silk-like, caliber 8500 self-winding Co-Axial master chronometer movement with date function, approximately 60 hours of power reserve, brushed stainless steel bracelet with polished 18K yellow gold bars. Water resistant to 100 m (330 ft).