This product has undergone strict waterproof pressure testing, achieving water resistance up to 120 meters. The Jaeger-LeCoultre Master Ultra-Thin Moon Phase Enamel Watch inherits the elegant design of the Master series while incorporating the expertise and craftsmanship of master watchmakers. It innovatively applies guilloche and enamel techniques to the watch, presenting an astonishing visual effect, with the finished piece exuding elegance and a rich texture. The hand-engraved guilloche decorated enamel dial is exquisite, capable of showcasing a gradient effect under different lighting conditions, with every detail reflecting the craftsmanship of the artisans.At the 9 o'clock position, there is a new moon phase display. When the moon phase reaches the evening, a full moon appears against a starry night sky. The hour markers on the dial feature a new design that is longer compared to previous models, with double markers at the 12, 3, 6, and 9 o'clock positions complementing the dauphine hands. The genuine leather strap, adorned with natural creases, aligns with the watch's character, together presenting an elegant gentlemanly demeanor.Equipped with the Japanese original 8217 customized movement, it offers stable precision without after-sales concerns. The double-domed sapphire crystal is transparent and scratch-resistant. This product has been rigorously tested for waterproof pressure, achieving water resistance up to 120 meters. The Jaeger-LeCoultre Master Ultra-Thin Moon Phase Enamel Watch continues to uphold the elegant design of the Master series while integrating the dedication of master watchmakers, innovatively applying guilloche and enamel techniques to create an astonishing visual effect. The pursuit of ultimate replication demands high quality; it's not just a concept! Focus on original new movements focus is an attitude, brought to you by JH!