Omega Constellation Co-Axial Watch - 27 mm Steel Case - Mother-Of-Pearl Dial - 123.10.27.20.55.002 Edge 18K Everose gold President bracelet

18K Everose gold President bracelet with semi-circular three-piece links

yellow gold screw-down crown

black diamond Roman VI dial

Rolex calibre 4130 self-winding movement with chronograph central second hand

Omega Constellation Co-Axial Watch - 27 mm Steel Case - Mother-Of-Pearl Dial - 123.10.27.20.55.002 Edge 18K Everose gold President bracelet27 mm stainless steel case, transparent back, stainless steel bezel with engraved roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, white mother of pearl dial with a wavy pattern extending from the iconic claws, 11 diamond indexes, date window at 3 o'clock, calibre 8520 self winding movement with co axial escapement for greater precision stability and durability, approximately 50 hours of power