
Longines
THE MASTER COLLECTION
REF: L2.773.4.71.2
Materials
Round stainless steel case. Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides. Transparent case back with sapphire crystal. Blue alligator strap with triple safety folding clasp and push-piece opening mechanism.
Dial
Silver dial with blued steel hands and applied Roman numerals.
Functions
Hours, minutes, small seconds with 24 hours indicator at 9 o'clock. Date indicated by the half moon central hand. Moon phase display at 6 o'clock. Chronograph mechanism: central 60 seconds hand, moon phase display with 12 hours counter at 6 o'clock and 30 minutes counter with day and month display at 12 o'clock. Water-resistant to 30 metres (3 bar).
Power Source
Self-winding mechanical movement beating at 28'800 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 66 hours. Calibre L687.
Diameter
42mm.
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