Swiss minute repeating chronograph watch with registers Circa 1910

Unsigned yellow gold open faced chronograph
–
A Swiss 18 carat gold minute repeating keyless lever pocket chronograph watch with an instantaneous 30 minute register, circa 1910. This watch features a 17.5′” ligne movement with a lever escapement. It has a white enamel dial with Breguet style numerals and an outer track displaying minutes and seconds with Arabic numerals at five minute intervals. There are two subsidiary dials: one for constant seconds and another for the 30 minute register, complemented by Breguet style hands. The case is made of 18 carat yellow gold, with a plain cuvette and a hinged case back.
–
Diameter: 52 mm
–
Signed: No name
–
The case is in good condition, showing surface wear and light scuffing typical of its age. The bow has some nicks and scratches. The gold mark is rubbed but still visible. The dial appears intact, with light dust and some patina around the outer edges of the subdials. The movement shows signs of wear and oxidation. The gongs have heavier patina and an area of indentation. The chronograph and minute chime are functioning but not optimally and may require servicing at the buyer’s discretion.