Fine Swiss silver open faced lever pocket watch Circa 1980

Silver gentlemen’s watch
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A Swiss silver open faced gentlemen’s pocket watch made by International Watch Company Schaffhausen, circa 1930. The movement with a Swiss lever escapement, Breguet hairspring, screw compensation balance fine adjustment and screwed chatons. White enamel dial with Arabic hour numerals, an outer minute track, subsidiary seconds at 6 o’clock and blued spade & whip hands. The stamped case is polished. Case and movement numbered.
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Diameter: 55 mm
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Weight: 124 g
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Signed: IWC Schaffhausen