Movement: OMEGA 4061 quartz movement with "Long Life" feature to maximize battery autonomy. Features a special red OMEGA logo, rhodium-plated parts, and circular graining. Battery life: 48 months. Crystal: Domed, scratch-resistant sapphire crystal with anti-reflective treatment on the inside. Water resistance: 3 bar (30 meters / 100 feet). Case and Dial: Stainless steel case. Case diameter: 39 mm. Lug width: 19 mm. Lug-to-lug distance: 46.50 mm. Thickness: 9.8 mm. Dial color: White. Total product weight (approx.): 55 g. Strap: Leather strap. Strap color: Blue. Outer strap material: Alligator leather. Inner strap material: Smooth calfskin. Buckle type: Pin buckle. Buckle material: Stainless steel.