Jaeger-LeCoultre Master Grande Tradition à Tourbillon 43 1662510
This Manufacture-made tourbillon, built for accuracy and toughness, won the International Chronometry Competition in 2009. Large balance wheel, high frequency. Quick crown-operated travel time zone change synchronised with the date. 24-hour reference time. The date hand jumps from 15 to 16 to avoid hiding the tourbillon; date is adjustable in both directions. Hand-decorated with a grade 5 titanium tourbillon carriage and a single-block oscillating weight in 22-carat rose gold.
Automatic movement, 33 jewels, eggshell beige matt dial with gilt hour-markers, and power reserve of 48 hours.