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Ulysse Nardin. An unusual silver openface keyless lever deck chronometer with Guillaume balance, power reserve, break circuit, original Bulletin de Marche and wooden box
拍品 214

Ulysse Nardin. An unusual silver openface keyless lever deck chronometer with Guillaume balance, power reserve, break circuit, original Bulletin de Marche and wooden box

SIGNED ULYSSE NARDIN, LOCLE, SUISSE, CHRONOMETRE, 128006, MOVEMENT NO. 128'006, CASE NO. 717 408, CIRCA 1961

已結束2011年11月14日

成交價

CHF 2,750

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Ulysse Nardin. An unusual silver openface keyless lever deck chronometer with Guillaume balance, power reserve, break circuit, original Bulletin de Marche and wooden box
Signed Ulysse Nardin, Locle, Suisse, Chronometre, 128006, movement no. 128'006, case no. 717 408, circa 1961
Cal. 24''' gilt-finished fully jewelled lever movement, Guillaume balance with gold poising screws, cam wheel regulator, escape wheel pinion fitted with a cam for contact-breaking each second, silver cuvette, silvered matte dial, Roman numerals, blued steel spade hands, two subsidiary dials for 36 hours power reserve and constant seconds, large circular water-resistant-type case, screw back, a sliding lever for the hack feature and transmitting pin in the band, large ball-form crown, in three-tier lacquered mahogany box numbered 128006 with integrated power supply and conductors, case, cuvette, dial and movement signed and numbered
64.5 mm. diam.

專家說明

With Ulysse Nardin original Bulletin de Marche dated October 1961 confirming the adjustment of the movement to sidereal time.

"Break-Circuit" deck watches were designed to assist in surveying and mapping operations as well as solar observations and scientific experiments in remote areas requiring precise and audible time signals. These deck watches, also called survey chronometers, were highly finished and adjusted in order to meet the surveyor's and scientist's requests.

The first break-circuit mechanism was installed in 1874 by S. & J.D. Negus, Chronometer and Nautical Instruments Makers in New York.