Swiss gilt-metal pair-cased verge pocket watch Circa 1760

Verge pocket watch with open face by Bordier
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A Swiss, gilded metal, pair-cased open faced key-winding pocket watch, circa 1760-1770.
Gilt full plate movement, fusee and chain, verge escapement, three-arm brass balance. Enamel dial with Roman radial hours, outer minutes track with Arabic five minutes numerals, and original Louis XV-style hands. Two round-shaped gilded metal cases. Outer case Ø 46.2 mm. Dial and movement signed.
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Diameter: 40 mm
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Signed: Bordier Genève
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Repair required