Important Modern & Vintage Timepieces...

Geneva, Nov 10, 2019

LOT 80

CHRONOMETER PRECISION WATCH FOR GENEVA OBSERVATORY TRIAL AND RICMOND OBSERVATORY TRIAL.

CHF 2,000 - 4,000

HKD 16,000 - 32,000 / USD 2,000 - 4,000

Sold: CHF 2,750

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.


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Grading System
Grade:
Case: 3-8

Good

Slightly scratched
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

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

Notes

This Chronometer was submitted successively at the Geneva observatory where it obtained a bulletin de marche for first class category from January 1912 and then immediately submitted to the National Physical laboratory in Richmond where it obtained its Kew A certificate. Amazingly, all the documentation pertaining to these trials