Unusual Swiss platinum, sapphire and diamond brooch watch Circa 1910
Platinum lapel watch made for Black, Starr & Frost – A fine and unusual, platinum, sapphire and diamond-set, keyless lapel watch with articulated integral diamond and ruby-set brooch, circa 1910. Made for Black, Starr & Frost by Ed. Koehn, Genève, Switzerland. A solid, polished case, hinged case back,…
- Diameter
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- Estimate
- € 3.500 - 7.000
- Price
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- Year sold
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