Jaeger-LeCoultre Master Control Chronometre Perpetual Calendar

The Jaeger-LeCoultre Master Control Chronometre Perpetual Calendar, reference Q4178180, carries a perpetual calendar in a 39 mm steel case. Measuring 9.2 mm thick, the case is rated to 50 metres. The blue sunray-brushed dial bears polished rhodium-finish numerals and hour-markers, Dauphine hands, a date display and moon phase at 6 o'clock. Opaline and azuré subdial finishes appear alongside the hammered gold-leaf moon. Chronometer certification comprises COSC standards and the Jaeger-LeCoultre HPG Seal. Automatic calibre 868 contains 332 components, 46 jewels and one barrel, operating at 4 Hz with a 70-hour power reserve. The integrated bracelet has brushed and polished finishes.