Swiss silver fan shaped keyless lever sector watch Circa 1903

Silver sector watch with retrograde hours and minutes by Record Watch Co
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A fine and highly unusual Swiss silver fan shaped keyless lever sector watch with retrograde hours and minutes, circa 1903. Registered on April 9, 1903 by Giovanni Sgherlino, Turin. Fan shaped gilt brass movement, 15 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator.  Hinged silver cuvette. White enamel dial with Arabic numerals from 0 to 12, outer minute divisions, outermost black and red five minute numerals from 0 to 60 for the retrograde indication of the hours and minutes, original blued steel spade hands. Polished case, winding crown with scroll shoulders. Dial, cuvette and movement signed.
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Dimensions: 60 x 61 mm
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Signed: Record Watch Co. S.A. Tramelan