Watch, Longines Record L2.818.104.22.168 . Case: round. Material: stainless steel. Glass: scratch-resistant sapphire crystal, with several layers of anti-reflective coating on the underside. Case back: Transparent case back with sapphire crystal. Dimensions 40.00 mm in diameter. Water Resistance: Water-resistant to 3 bar. Dial and hands. Color: Sunray black. Hour markers: Painted Arabic numerals and applied indexes. Hands: Silver polished hands. Caliber: L888.4 . Movement Description: Self winding mechanical movement bbeating at 25´200 vibrations per hour and providing 64 hours of power reserve with monocrystalline silicon balance-spring. Function: Hours, minutes, seconds and date. Strap. Material: Alligator strap. Colour: Black. Buckle: With triple safety folding clasp and push-piece opening mechanism.