Omega Planet Ocean 600M Co-Axial Master Chronometer Watch - 39.5 mm Steel Case - Unidirectional Blue Cermaic Bezel - Blue Dial - 215.30.40.20.03.001 Ocean-Blue black dial with Roman numerals

black dial with Roman numerals and index hour markers

two-tone light grey and dark grey rubber strap

unidirectional rotating bezel set with diamonds

5 mm Case Shape Round Case Back Transparent Case Detail 39

40 mm sedna gold case

Omega Planet Ocean 600M Co-Axial Master Chronometer Watch - 39.5 mm Steel Case - Unidirectional Blue Cermaic Bezel - Blue Dial - 215.30.40.20.03.001 Ocean-Blue black dial with Roman numerals39. 5 mm stainless steel case with helium escape valve, transparent screw in back, screw in crown, unidirectional rotating blue cermaic bezel with Liquidmetal diving scale, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, blue dial with Arabic numerals and a date window at the 3 oclock, caliber 8800 self winding Co Axial chronometer movement with date function, approximately 55 hours of power reserve, stainless