Self-winding mechanical movement Caliber 2500 with Co-Axial escapement. Chronometre. Rose gold case, 37,5 mm diameter. Blue 'pie-pan' dial with applied rose gold Roman numerals and hour markers, date window at 3 o'clock. Sapphire glass. Screw-down rose gold case back. Omega original alligator strap with original Omega rose gold folding clasp.