121 Breguet A massive, super-complicated and highly collectible, open-face, Grande and Petite Sonnerie, trip minute-repeating carillon, perpetual calendar, moon phases, skeletonized pocket watch in yellow gold, with Breguet certificate.

Estimate: € 120,000 –⁠ 240,000

This rare 1980 Breguet pocket watch is a testament to the brand’s commitment to mechanical excellence during the Quartz Crisis. With a skeletonized design, hand-engraved movement, and a heavy gold case, it reflects Breguet’s dedication to preserving the legacy of haute horology, likely as a special commission. The impressive yellow-gold case, with its substantial stepped and rounded bezels, houses a grande and petite sonnerie minute-repeating carillon mechanism activated via the cabochon sapphire-set crown button. Through the sapphire dial and case back, the intricate mechanics are fully revealed, showcasing three polished steel hammers striking against tuned gongs for a rich and resonant chiming. Moreover, this watch also integrates an extraordinary perpetual calendar complication. The simultaneously presence of these two incredibly sophisticated complications is extremely rare to put together in a single watch. The skeletonized dial features diamond-set hour markers and four meticulously crafted gold chapter rings displaying the day, date, month, and leap year indication. A subsidiary seconds dial at 6 o’clock is harmoniously combined with a striking lapis lazuli aperture for the moon phase that clearly reflect a collaboration between Gérald Genta and Breguet. Accompanied by an official Breguet certificate confirming its sale on November 24th for the astonishing sum of 280 000 francs, this masterpiece is undoubtedly one of the most significant and complex pocket watches ever created by Breguet.