MOVEMENT Caliber: Omega 8500 Self-winding movement with Co-Axial Escapement for greater precision stability and durability. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Visible bridges and the oscillating mass are decorated with exclusive Geneva waves in arabesque. Power reserve: 60 hours CRYSTAL Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides CASE & DIAL Case: Steel Diameter: 41.5 mm Dial: Teck-opaline silver WATER RESISTANCE 150 m (500 feet) FEATURES Chronometer Date Transparent case back All the watches from Rivoli Jewellers come complete with manufacturers packaging, warranties and instructions.