French platinum and sapphire jump hour watch Circa 1920
Fine slim platinum and sapphire-set jump hour watch – A fine slim French platinum and sapphire-set open-faced keyless jump hour watch, circa 1920, manual winding nickel lever movement, 18 jewels, bimetallic compensation balance. Silvered dial, guilloche sunburst dial, aperture for jump hour, Arabic minute numerals, five-minute divisions,…
- Diameter
- 46 mm
- Estimate
- € 7.500 - 15.000
- Price
- -
- Year sold
- -
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