Water-resistant to 5 ATM, suitable for swimming. The Laolisi Sun and Moon Star Series features an original imported 82S7 movement (no repairs, no after-sales service), with a unique 24-hour display and true moon phase indicator, a hollow design that offers a clear view of the movement in action, and a small seconds display. It is equipped with a dual-layer sapphire glass lens, boasting an exceptional luminous effect, and has a case diameter of 40x11 mm, made in Italy. With 5 ATM water resistance! This elegant style instantly enhances a man's charm and symbolizes both taste and a prestigious lifestyle! Focused on original new movements, focus is an attitude, produced by JH!