self-winding chronometer Omega 8401 movement with Co-Axial Escapement and seconds
blue-grey dial with Grande Tapisserie pattern
unidirectional rotating bezel with white ceramic insert containing Liquidmetal diving scale and the number 20 filled in red liquid ceramic
Water resistant to 100 m (330 ft)
The Black Bay Fifty-Eight was designed with vintage enthusiasts in mind
Omega Constellation Co-Axial Watch - 27 mm Steel And Red Gold Case - Diamond-Set Red Gold Bezel - Mother-Of-Pearl Dial - Steel Bracelet - 123.25.27.20.55.005 Special self-winding chronometer Omega 8401 movement27 mm stainless steel and red gold case, transparent back, diamond set 18K red gold bezel, 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 reserve,
