Golay Fils & Stahl Chronometer Watch

Movement and Escapement

The timepiece is powered by a rhodium-plated calibre 20''' movement, identified by serial number 32090. The construction centers on a straight-line lever escapement designed for chronometric precision. The watch uses 19 blue sapphire jewels to reduce friction within the gear train.

A central feature of the balance assembly is the Guillaume compensation balance. This component is fitted with gold temperature and meantime adjustment screws to maintain accuracy across thermal variations. The regulation is further supported by a blued steel Breguet-style balance spring incorporating a terminal curve and an adjustable index regulator. Winding is facilitated by a wolf’s tooth winding mechanism, integrated into the gear train layout.

The movement plate bears the signature of Golay Fils & Stahl, Geneve. The auction description notes that the movement is presently in need of a professional overhaul.

Certification and Trials

In December 1913, the watch was assessed by the Observatoire de Genève, where it earned a first-class bulletin de marche.

Immediately following the Geneva evaluation, the timepiece was submitted to the National Physical laboratory in Teddington. There, it successfully completed the trials required to receive a Kew A certificate, dated 1 March 1914. These two certifications signify the watch's performance during these institutional endurance trials.

The auction reporting confirms that the original documentation for both trials has been preserved and accompanies the watch.

Case and Presentation

The watch features a nickel-plated case with a diameter of 54 mm, which serves to house the 20''' movement. The case back bears the corresponding serial number 32090, matching the internal movement identifier.

According to the auction house reporting, the condition of the case is categorized as good, though it exhibits slight surface scratching. The dial is also reported as being in good condition. The watch retains its original hands, completing the ensemble as documented in the provided registry information.