Coin watch with gold skeletonized movement Circa 1970

A Swiss 18 carat gold manual wind concealed twenty dollar coin watch, circa 1970. Skeletonized and engraved 14 carat gold jewelled Cal. 2003/2 manual wind movement. Skeletonized dial, gilt pointed baton hands. United States twenty dollar coin form case, the coin dated 1897, hinged front opened via push button in the band at 3, inner hinged pivot case, brushed bezel with baton hour markers. Case, dial and movement signed.
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Diameter: 35 mm