Jaeger-LeCoultre Master Grand Tradition Tourbillon Cylindrique Quantieme Perpetual
The case, in platinum, measures 42mm x 13mm. It has double sapphire crystals.
Movement is the Swiss automatic JLC in-house caliber 985 with 49 jewels, 28,800 vph and a power reserve of 48 hours. Functions are perpetual calendar, tourbillon and moonphase.