Breguet No. 3105 “Répétition or à Minutes”. An extremely fine and important, possibly unique 18K gold openface minute repeating on gong, hours and quarters à toc, jump-hour watch with extensive jewelling, lever escapement and bimetallic balance constructed on the principles of the garde-temps, power reserve and cuvette with equation of time chart
Breguet No. 3105 “Répétition or à Minutes”. An extremely fine and important, possibly unique 18K gold openface minute repeating on gong, hours and quarters à toc, jump-hour watch with extensive jewelling, lever escapement and bimetallic balance constructed on the principles of the garde-temps, power reserve and cuvette with equation of time chart Signed Breguet, Horloger de la Marine Royale, No. 3105, sold on 17 August 1819 to Lord Lucan for the sum of 4,800 Francs Movement: gilded brass, going barrel with separate bridge, jewelled to the centre wheel, elongated counterpoised straight line lever escapement with draw, bimetallic balance with compensation affixes, the gold adjustment screws within the rim, balance spring with terminal curve, à toc repeating for the hours and quarters with a hammer on the inside of the case, repeating the minutes with a further hammer on a single gong activated by depressing a pull-and-twist piston in the pendant, punch numbered 3105 to the dial plate Dial: engine-turned silver, three-piece, secured by a single screw, champlevé Roman numerals on a blank chapter ring, eccentric subsidiary seconds, eccentric power reserve sector, blued steel Breguet hands, signed Breguet et Fils, punch numbered on the reverse B 3105 T Case: four-body, "forme quatre baguettes", engraved grains d’orge, gold cuvette with engraved equation of time chart, 58 mm. diam., cuvette signed and numbered With: gold Breguet male ratchet key