This Omega is 39.5 mm 18K Sedna gold case with helium escape valve, transparent screw-in back, screw-in crown, unidirectional rotating brown cermaic bezel with Ceragold diving scale, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, chocolate brown dial with Arabic numerals and a date window at the 3 o’clock, caliber 8801 self-winding Co-Axial chronometer movement with date function, approximately 55 hours of power reserve, brown leather strap with rubber lining. Water resistant to 600 m (2000 ft).