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 Diamond-Paved 38 mm brushed stainless steel

38 mm brushed stainless steel and 18K red gold case

42 mm 18K yellow gold case

brown large square scale alligator strap and additional brown alligator strap

blue dial with Roman numerals and index hour markers

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 Diamond-Paved 38 mm brushed stainless steel44. 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).