Omega Constellation Co-Axial Watch - 27 mm Steel Case - Diamond-Set Bezel - Mother-Of-Pearl Dial - 123.15.27.20.55.003 Yellow 18K pink gold crown

18K pink gold crown

Calibre 2385 self-winding movement with chronograph

glareproof sapphire crystal back

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

Calibre 3120 selfwinding movement with dive-time measurement

Omega Constellation Co-Axial Watch - 27 mm Steel Case - Diamond-Set Bezel - Mother-Of-Pearl Dial - 123.15.27.20.55.003 Yellow 18K pink gold crown27 mm stainless steel case, transparent back, diamond set bezel, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, White mother of pearl dial with a wavy pattern that flows between the iconic claws, 11 diamond indexes, date window at 3 o'clock, caliber 8520 self winding movement with chronometer and automatic winding in both directions to reduce winding time, approximately 50 hours of power reserve, stainless steel