CHRONOMETER PRECISION WATCH FOR GENEVA OBSERVATORY TRIAL AND RICMOND OBSERVATORY TRIAL.
Very fine, large and extremely accurate, silver, keyless lever chronometer watch with blue sapphire jewels, Guillaume balance. With original 1 ST class ‘’bulletin de marche’’ from the Observatoire de Genève on 10 January 1912 and the original National Physical laboratory in Richmond class Kew A certificate from 29 February 1912.
Brand: Golay Fils & Stahl, Geneve
Model: Chronometer
Year: Circa 1911
Movement No.: 30606
Calibre: 20’’’, gilt brass, 19 blue sapphire jewels, straight line lever escapement, Guillaume compensation balance with gold temperature and meantime adjustment screws, blued steel Breguet balance spring with terminal curve, swan-neck micrometer regulator, wolf’s tooth winding
Diameter: 58 mm
Signature: Dial and Movement
Accessories: Accompanied by the original Bulletin de Marche of the Geneva observatory and the Kew A certificate from the National Physical laboratory in Richmond
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Very fine, large and extremely accurate, silver, keyless lever chronometer watch with blue sapphire jewels, Guillaume balance. With original 1 ST class ‘’bulletin de marche’’ from the Observatoire de Genève on 10 January 1912 and the original National Physical laboratory in Richmond class Kew A certificate from 29 February 1912.
Brand: Golay Fils & Stahl, Geneve
Model: Chronometer
Year: Circa 1911
Movement No.: 30606
Calibre: 20’’’, gilt brass, 19 blue sapphire jewels, straight line lever escapement, Guillaume compensation balance with gold temperature and meantime adjustment screws, blued steel Breguet balance spring with terminal curve, swan-neck micrometer regulator, wolf’s tooth winding
Diameter: 58 mm
Signature: Dial and Movement
Accessories: Accompanied by the original Bulletin de Marche of the Geneva observatory and the Kew A certificate from the National Physical laboratory in Richmond
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