Full set with warranty and extended warranty, Jaeger-lecoultre Ultra-Thin Master Series Q1368430, 39mm diameter, stainless steel case, automatic mechanical movement, moon phase and date display, transparent back design, accurate timekeeping • Watch body specifications: Stainless steel case, 39mm in diameter, 9.9mm in thickness. The ultra-thin body is suitable for formal cuffs and is paired with a black original alligator leather strap • Movement configuration: Jaeger-lecoultre Cal.925 / 1 automatic self-winding movement, 43-hour power reserve, 50-meter water resistance for daily use, transparent back cover with Geneva stripes and fish-scale patterns hand-polished • Dial craftsmanship: Silver-white sunburst dial, rose gold three-dimensional Toffee hour markers, blue steel seconds hand, integrated moon phase and date composite display window at 6 o 'clock Functional details Moon phase display: The classic starry sky background moon phase dial precisely simulates the waxing and waning of the moon, which is a signature design of the Jaeger-lecoultre Master series Date reading: The circular numbers from 1 to 31 outside the moon phase window are synchronously indicated by the moon phase pointer to show the Gregorian calendar date. There is no additional calendar window, making the dial cleaner and more simple