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The Encyclopedia of Horology

Source catalogue · individual objects

Object Catalogue

Individual objects described by auction houses, specialist dealers and collection catalogues. Attribution, dates and specifications remain source-reported unless independently established; rights clearance is pending.

Browse makers and their key pieces · Golay Fils & Stahl profile

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A 20-ligne Golay Fils & Stahl chronometer movement, shown alongside its original observatory testing certificates.

Pocket watch · Pocket chronometer & deck watch

Golay Fils & Stahl Chronometer Pocket Watch

This Golay Fils & Stahl chronometer pocket watch, serial number 32095, is a precision timepiece designed for observatory trials. Produced around 1914, the 52 mm silver watch features a 20-ligne rhodium-plated movement finished with fausses côtes decoration. The movement includes a straight-line lever escapement, 21 blue sapphire jewels, and a Guillaume compensation balance equipped with gold temperature and meantime adjustment screws. The timepiece utilizes a blued steel Breguet balance spring with a terminal curve and an index regulator. The watch is distinguished by its history of observatory testing, having achieved a first-class bulletin de marche from the Observatoire de Genève in June 1914 and subsequently receiving a Kew A certificate from the National Physical Laboratory in Teddington in July 1914. It is accompanied by its original documentation from both testing facilities, which validates its performance accuracy during the early 20th century.

Full description

catalog.antiquorum.swiss · 84

The movement of the Golay Fils & Stahl chronometer, showing the wolf's tooth winding wheel and the Guillaume balance, resting atop its historical observatory certificates.

Pocket watch · Pocket chronometer & deck watch

Golay Fils & Stahl Chronometer Watch

This Golay Fils & Stahl chronometer is a nickel-plated, keyless lever watch measuring 54 mm in diameter. Dating from circa 1913, the watch features a rhodium-plated calibre 20''' movement with 19 blue sapphire jewels. It is equipped with a straight-line lever escapement and a Guillaume compensation balance, which includes gold temperature and meantime adjustment screws. The balance spring is of the blued steel Breguet type with a terminal curve. Winding is achieved through a wolf’s tooth mechanism, and the watch includes an index regulator. The piece is notable for its competitive history, having successfully undergone testing at the Observatoire de Genève for a first-class bulletin de marche in December 1913, followed by a Kew A certificate trial at the National Physical laboratory in Teddington in early 1914. It is accompanied by these original documents.

Full description

catalog.antiquorum.swiss · 81

The movement of the Golay Fils & Stahl chronometer resting on the original observatory certificates.

Pocket watch · Pocket chronometer & deck watch

Golay Fils & Stahl Keyless Lever Chronometer

This keyless lever pocket watch was produced by Golay Fils & Stahl around 1909. Measuring 52 mm in diameter, the timepiece features a nickel-plated case housing a 20-ligne rhodium-plated movement. The mechanical construction incorporates 21 blue sapphire jewels and a straight-line lever escapement. Precision is maintained through a Guillaume compensation balance equipped with gold temperature and meantime adjustment screws, complemented by a blued steel Breguet balance spring with a terminal curve and a swan-neck micrometer regulator. The winding mechanism utilizes a wolf’s tooth configuration. The watch is historically significant for having undergone professional certification at two prominent institutions: it received a first-class bulletin de marche from the Observatoire de Genève in November 1909, followed by a Kew A certificate from the National Physical Laboratory in Richmond in January 1910. The original documentation for both trials accompanies the object.

Full description

catalog.antiquorum.swiss · 79