Swiss gold lever watch with chain, key and pouch Circa 1975

Gold open faced keywound lever by IWC
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A very fine and rare Swiss 18 carat gold open faced keywound lever pocket watch with 11 cm 18 carat gold chain, 18 carat gold key, pouch and guarantee (now void), made in the 1970’s. Gilt brass movement, Geneva Striping decoration, 21 jewels, straight-line lever escapement, mono-metallic balance, shock absorber, selfcompensating Breguet balance spring, micrometer regulator. White enamel dial with printed Roman numerals, outer minute divisions, subsidiary guilloché seconds dial and original black Breguet hands.  Plain case, rounded bezels, the back opens by pushing the crown for winding and setting. Dial, case and movement signed, case numbered.
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Diameter: 48 mm
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Thickness: 11 mm
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Signed: International Watch Co Schaffhausen Swiss