Jaeger-LeCoultre Master Grande Tradition Master Grande Tradition, 186.6.35.S, Unknown, 42 mm, Silver

The Jaeger-LeCoultre Master Grand Tradition Tourbillon Perpetual 186.6.35.S is a pinnacle of haute horology, combining two of the most prestigious complications in watchmaking: the tourbillon and the perpetual calendar. Released in 2009 as part of the Master Grand Tradition collection, this 42mm platinum timepiece showcases exceptional craftsmanship and mechanical complexity. It features a full four-digit year display at 12 o’clock and a beautifully finished tourbillon at 6 o’clock, visible from both the dial and the transparent case back. The perpetual calendar automatically adjusts for leap years and varying month lengths, requiring no manual correction for decades. This preowned model has undergone a full overhaul and finishing by the manufacturer, ensuring it remains in excellent condition. While the strap has been replaced with a high-quality Bambi crocodile strap, the genuine buckle and service papers are included. This watch represents a true collector’s piece for those who appreciate fine mechanical innovation and timeless design.