Jaeger LeCoultre, Ultra-thin Master Series watch, model: Q1368430, the latest automatic winding, 39mm in diameter, ultra-thin stainless steel case, double-finished with brushing and polishing, only 9.9mm thick, fits the wrist well, no sense of oppression during formal commuting. Paired with a black alligator leather strap, folding pin buckle and sapphire scratch-resistant crystal; Water-resistant to 30 meters, only supports daily hand washing. Silver-white radial dial, three-dimensional bar beveled hour markers, blue steel hour, minute and second hands; The off-center sub-dial at 6 o 'clock integrates date and moon phase: the numbers 1 to 31 on the outer circle represent the date, and the deep blue starry sky moon phase window in the middle is Jaeger-lecoultre's signature poetic moon phase design.