41 mm steel and yellow gold case, transparent back, brown polished ceramic bezel ring with Roman numerals filled with OMEGA Ceragold, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, rhodium-grey dial with silk-embossed finish with date at 6 oclock, Calibre 8900 self-winding chronometer movement with date. Water resistant to 50 metres (167 feet).
41 mm steel and yellow gold case, transparent back, black polished ceramic bezel ring with Roman numerals filled with OMEGA Ceragold, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, sun-brushed green dial with gradient effect with date at 6 oclock, Calibre 8900 self-winding chronometer movement with date. Water resistant to 50 metres (167 feet).