Longines Master Collection

The Longines Master Collection, reference L2.257.5.37.7, has a 29 mm case in steel with an 18 karat yellow gold cap. The gilt dial is set with diamonds. The case measures 9 mm thick and 34.5 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L592.5 provides up to 45 hours of power reserve beneath a transparent case back. A scratch-resistant sapphire crystal covers the dial, which has a date display. The bracelet is steel with an 18 karat yellow gold cap and closes with a triple safety folding clasp with a push-piece opening mechanism. Gilt hands indicate the time.