Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Sedna Gold And Steel Case - Unidirectional Blue Ceramic Bezel - Blue Ceramic Dial - 215.20.46.51.03.001 Nude and end of battery life

and end of battery life indicator

bezel with a fixed dewdrop on either side

caliber 8901 self-winding master co-axial chronometer movement with date window at the 3 o’clock

column wheel

Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Sedna Gold And Steel Case - Unidirectional Blue Ceramic Bezel - Blue Ceramic Dial - 215.20.46.51.03.001 Nude and end of battery life45. 5 mm 18K Sedna gold and stainless steel case with anti magnetic properties and helium escape valve, transparent back, screw in crown, unidirectional rotating blue ceramic bezel with Ceragold diving scale, scratch resistant sapphire crystal, blue ceramic dial with Arabic numerals and a date window at the 6 oclock position, small seconds sub dial, as well as 60 minute and 12 hour counters on one dial, caliber Omega 9900 self winding Co Axial master