Fine Swiss stainless steel open faced lever watch Circa 1927

Stainless steel keyless pocket watch
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A Swiss stainless steel open faced keyless pocket watch made by Patek Philippe in Geneva, circa 1927. Nickel finished lever movement stamped twice with the Geneva seal, 18 jewels, a bimetallic compensation balance and wolf’s tooth winding. Two tone silvered sector dial with hard black enamel baton hour indexes, an outer minute track, engine turned subsidiary seconds at 6 o’clock and blued leaf hands. Plain case with a snap on back and an engraved foliage decorated bow. Dial, case and movement signed.
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Diameter: 46 mm
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Signed: Patek, Philippe & Cie Genève