Breguet Classigue Grande Sonnerie Metiers d’Art 1905 (2025)

Case is 56.5mm with a thickness of 23.5mm in 18k “Brequet Gold”, sapphire crystal, dust and moisture resistant only. Case band, bow and rear cover are decorated with Quai de I’Horloge guilloché inspired by the Turgot map of Paris, the back covered with Bleu de France grand feu enamel and a raised Breguet “B”, while the front lid is hand-engraved with the River Seine and Brequet’s historic Quai de I’Horloge workshop, the river itself picked out in Bleu de France enamel. Regulator-style dial in Breguet Gold with Quai de I’Horloge guilloché and a white enamel hours insert with pantograph-engraved secret signature, plus blued (PVD) tourbillon bridge and hammers and two prominent chiming gongs visible on the dial side.Movement is manual-winding caliber 508 GS running at 18, 000bph with around 539 components and 43 jewels, combining tourbillon, grande and petite sonnerie, minute repeater and a magnetic strike governor; the going train winds clockwise and the strike train counterclockwise, with the movement inverted so the strike works are on full display behind a sapphire cuvette. Power reserve is 56hrs for timekeeping with around 36hrs of striking in grande sonnerie mode, using white gold gongs fixed directly to the extensively hollowed Brequet Gold case, which still contains about 400g of gold to act as a resonant body. Delivered on an 18k Brequet Gold chain with matching guilloché clasps, in a presentation box made from “Marie-Antoinette oak” with a spruce resonance tray from the Risoud forest.Made to order in extremely low numbers. Price on request.