The Art Of Vacheron Constantin
Geneva, Hotel Des Bergues, Nov 13, 1994
The most complicated watch ever made by Vacheron & Constantin, Genève, No. 415810, case No. 258597, manufactured between 1930 and 1935, purchased by His Excellency Boulent Raoul and presented to His Majesty King Farouk of Egypt. Unique extra large, 18 ct. gold, keyless minute repeating "Grande and Petite sonnerie" moon phase astronomical clock-watch with perpetual calendar, split seconds chronograph with 30 minute instantaneous recorder and alarm, with power reserve indicators for both the going and the striking trains, in original mahogany fitted box.
C. Four body, massive, "pomme et grande gouge", polished. Gold cuvette. D. Gold, frosted and gilt with Breguet numerals, outer chronograph ring, subsidiary dials for days of the week with inner 30 hour striking train upand-down scale, minute register with sunk inner leap-year cycle, the months with inner 30 hour going train up-and-down scale, the dates with inner moon phase aperture and running seconds. Blued steel "spade" hands. M. 23"', rhodium plated, "fausses côtes" decoration, three trains with differential winding, the alarm train wound by means of a slide in the band, 55 jewels, straight line lever escapement, brass-invar Guillaume balance, Breguet balance spring with special micrometric index, Swiss patent No. 101562. Striking and repeating on gongs, the repeating detent in the band, "Grande/Petite sonnerie" and Strike/Silent" nibs in the band. Split seconds chronograph with visible work, button on the winding crown and push piece in the band. Signed on the dial, case and movement. In perfect condition. Diam. 80 mm.