The Longines Master Collection Chrono Moonphase is a refined and technically complex timepiece. It features a 40.00 mm stainless steel case, an opaline ivory dial with Roman numerals, and blue steel hands. Complications include a chronograph, moon phase, date (indicated by a half-moon central hand), and a 24-hour subdial. It is powered by the automatic calibre L687 (self-winding) with a monocrystalline silicon balance spring, offering a power reserve up to approximately 66 hours. The watch is water resistant to 3 bar (30 m). It comes mounted on a blue alligator leather strap with a triple safety folding clasp and push-piece opening mechanism.
