Longines Master Collection

The Longines Master Collection, reference L2.357.5.72.7, has a 34 mm round case in steel with an 18 karat yellow gold cap. Engraved Arabic numerals accompany gilt hands on the opaline ivory dial. Self-winding calibre L888.5 has up to 72 hours of power reserve and is visible through a transparent case back. The dial is covered by a scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides. A bracelet in steel with an 18 karat yellow gold cap fastens with a triple safety folding clasp and a push-piece opening mechanism. Measuring 9.2 mm thick and 41.7 mm lug-to-lug, the case has a water-resistance rating of 30 metres.