Swiss silver Art Nouveau marksman lever watch Circa 1907

Silver lever with portrait scene
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Rare Art Nouveau marksman watch,  Swiss shooting matches in Zurich, circa 1907.
Original silver relief case, case number 400391, dome inscribed “Uhrenfabrik von J. Rauschenbach’s Erben-vormals International Watch Co. Schaffhausen”.
IWC precision movement with screwed golden chatons and fine regulation, movement number 374291, undamaged preserved enamel dial, pink golden hands, in very nice condition of preservation with old leather case.
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Diameter: 53 mm   Weight: 108 g
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Signed: International Watch Company  Schaffhausen