Waterproof to 5 degrees, suitable for swimming. Jaeger-LeCoultre Moon Phase Series, equipped with the original imported 8217 movement. Zero repairs, zero after-sales issues. 24-hour true moon phase display. Double-layer sapphire crystal lens. Italian leather strap. Case diameter 40x11mm. 5-degree waterproof. Instantly elevates a man's charm with elegant style, symbolizing taste and a distinguished lifestyle. Focused on original new machines, committed to quality, never forgetting the original intention. A true representation of JH products.