W. G. Schoof. An extremely fine, rare and large 18K gold hunter case two-train trip-minute repeating Grande and Petite Sonnerie keyless lever chronograph clockwatch with perpetual calendar, moon phases and lunar calendar
W. G. Schoof. An extremely fine, rare and large 18K gold hunter case two-train trip-minute repeating Grande and Petite Sonnerie keyless lever chronograph clockwatch with perpetual calendar, moon phases and lunar calendar
W. G. Schoof. An extremely fine, rare and large 18K gold hunter case two-train trip-minute repeating Grande and Petite Sonnerie keyless lever chronograph clockwatch with perpetual calendar, moon phases and lunar calendar
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On lots marked with an + in the catalogue, VAT wil… Read more W. G. SCHOOFGrande and Petite Sonnerie Perpetual Calendar Chronograph Clockwatch
W. G. Schoof. An extremely fine, rare and large 18K gold hunter case two-train trip-minute repeating Grande and Petite Sonnerie keyless lever chronograph clockwatch with perpetual calendar, moon phases and lunar calendar

Signed W. G. Shoof, 99 St. John Road, Clerkenwell, London, no. 6070, the case stamped GHH and with London hallmarks for 1885

Details
W. G. Schoof. An extremely fine, rare and large 18K gold hunter case two-train trip-minute repeating Grande and Petite Sonnerie keyless lever chronograph clockwatch with perpetual calendar, moon phases and lunar calendar
Signed W. G. Shoof, 99 St. John Road, Clerkenwell, London, no. 6070, the case stamped GHH and with London hallmarks for 1885
Movement: part English & Swiss, manual, jewelled to the centre, two-train with tandem winding, English-type lateral lever escapement, blued steel balance spring with overcoil, diamond endstone, minute repeating and en passant grande and petite sonnerie striking with two hammers on two gongs, signed
Dial: white enamel with Roman numerals
Case: four-part, front cover engraved with a crest, levers for hours & quarters, quarters and strike/silent at the edge of the bezel, trip-repeat slide and chronograph button in the band, large bow, hinged gold cuvette, 59 mm. diam., case and cuvette stamped GHH and numbered
Special notice
On lots marked with an + in the catalogue, VAT will be charged at 7.7% on both the premium as well as the hammer price.

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Sabine Kegel
Sabine Kegel

Lot Essay

The present highly complicated watch has a three-quarter plate matte gilt movement engraved “English & Swiss”, is certainly in the “English style”. It was possibly made by LeCoultre and finished by the firm of Nicole Nielsen & Co. in London who did occasionally inscribe their movements in this way.

The escapement is the classic English lateral lever with diamond endstone rather than the Swiss straight line lever. In addition to the perpetual calendar, the present watch has Grande and Petite Sonnerie striking, one of the most difficult complications for the watchmaker to construct.

The grand strike, whereby both the hours and the quarter hours are struck every quarter and small strike whereby only the quarter hours are struck, with the hours only struck on the hour can be selected as required as well as a silent mode. To audibly know the time to the nearest minute, the repeating mechanism can be activated by the trip-slide in the band with the lightest of touch. The substantial gold case neatly and ingeniously disguises the levers and adjusters for the striking and calendars beneath the hinged front cover. When released by depressing the crown, the cover opens to access the setting levers and reveals a second glazed bezel protecting the dial.

The heavy gold case is stamped GHH and can be attributed to George Henry Harwood, listed as gold watch case maker in Clerkenwell, EC. At the 1885 International Inventions Exhibition, a world's fair held in South Kensington, he exhibited specimens of watch ases under the auspices of The British Horological Institute (see The Directory of Gold & Silversmiths, Jewellers & Allied Traders 1838-1914, John Culme, Vol.I p. 220, Vol. II p. 115.

William George Schoof (1830-1901)
Was a highly respected although unconventional watchmaker. Among Schoof's inventions was a patent spring banking that was a form of resilient escapement to prevent damage to the mechanism in the event of a violent shock. A marine chronometer by Schoof is in the collection of the Science Museum in London.

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