The Longines Master Collection

Hours, minutes, central 60 seconds chronograph hand, date shown by circle ring on the dial and indicated by the half-moon central hand. Moon phase display with 12 hours counter at 6 o'clock, small seconds with 24 hours indicator at 9 o'clock, 30 minutes counter with day and month display at 12 o'clock.

L678 self-winding mechanical beating at 28,800 vibrations per hour and providing 46 hours of power reserve

Round, in stainless steel with scratch-resistant sapphire crystal. Transparent case back with sapphire crystal. Diameter: 40.00 mm. Water-resistant to 30 meters (~100 feet).

Silver-finished "barleycorn" patterned, featuring 9 black Arabic numerals, blue steel hands.

Brown alligator strap with triple safety clasp and push-piece opening mechanism. Also available on a stainless steel bracelet.

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