Longines Master Collection

The Longines Master Collection, reference L2.357.4.87.0, has a 34 mm round case in steel. The watch is set with diamonds. Case dimensions include a thickness of 9.2 mm and a lug-to-lug length of 41.7 mm; water resistance is rated to 30 metres. Self-winding calibre L888.5 has up to 72 hours of power reserve and is visible through a transparent case back. Polished silvered hands indicate the hours and minutes on the white mother-of-pearl dial. A blue alligator leather strap closes with a triple safety folding clasp and a push-piece opening mechanism. Over the dial is a scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides.