caliber R TO 27 PS QI manually wound movement with day
unidirectional rotating blue ceramic bezel with Ceragold diving scale
Interchangeable full back and sapphire-crystal case back
ebony-black opaline dial with gold applied hour markers with luminescent coating
sun-brushed blue dial with polished domed Roman numerals and indexes
Omega Speedmaster Moonwatch Co-Axial Master Chronometer Moonphase Chronograph Blue Side Of The Moon Watch - 44.25 mm Blue Ceramic Case - Blue Ceramic Dial - Blue Leather Strap - 304.93.44.52.03.001 Medium caliber R TO 27 PS44. 25 mm blue ceramic case, transparent back, bezel ring with Liquidmetal tachymeter scale, scratch resistant sapphire crystal anti reflective treatment on both sides, blue ceramic dial includes 18K white gold indexes and hands, tachymeter scale, Caliber Omega 9904 self winding movement with chronograph, chronometer, moonphase, approximately 60 hours of power reserve, blue leather strap. Water resistant to 5 bar (50 metres 167 feet).