Jaeger-LeCoultre Master Grand Tradition Grand Complication

About this reference

The Jaeger-LeCoultre Master Grande Tradition Grande Complication reference 187.3.46.S in 18k white gold was introduced in 2010 as a limited edition of 75 pieces. This reference features the manual-wind Calibre 945, which integrates a flying orbital tourbillon, a minute repeater with cathedral gongs, and a celestial map displaying sidereal time. The dial utilizes a multi-level construction with a laser-engraved star chart and a sun-tipped hand indicating the zodiac and month. Collectors value this reference for its technical complexity and its role in establishing the brand’s modern high-complication aesthetic. On the secondary market, this specific white gold model typically trades in the $180,000 to $250,000 range depending on condition and provenance. A notable production detail is the use of silicon in the escapement and the "trebuchet" hammers designed to improve acoustic transmission against the sapphire crystal.