Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Silvery Dial - 131.10.39.20.02.001 Unworn Water resistant to 20 meters

Water resistant to 20 meters

5 mm ceramic case with soft-iron inner case for protection against magnetic fields

10mm stainless steel case

blue external zone

Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Silvery Dial - 131.10.39.20.02.001 Unworn Water resistant to 20 meters39 mm steel case with anti magnetic protection, transparent back, bezel engraved with Roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, sun brushed silvery dial with date at 6 oclock, Calibre Omega 8800 self winding co axial master chronometer movement with date, approximately 55 hours of power reserve, steel bracelet. Water resistant to 50 metres (167 feet).