900e calibre automatic movement
Rolex calibre 3235 perpetual self-winding movement with date at 3 o'clock that changes instantaneously at midnight in a few thousandths of a second
black dial with Roman numerals and index hour markers
At its core lies the Rolex Calibre 3255 Automatic movement
Powered by the Rolex Calibre 3285 automatic movement
Omega Speedmaster Moonwatch Co-Axial Chronograph Watch - 44.25 mm Steel Case - Blue Tachymeter Bezel - Blue Dial - 311.90.44.51.03.001 4968R001 900e calibre automatic movement44. 25 mm stainless steel case, transparent back, blue tachymeter bezel, scratch resistant sapphire crystal with anti reflective treatment on both sides, blue dial, self winding chronometer Omega 9300 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, stainless steel bracelet. Water resistant to 100 m.