Swiss open faced retrograde lever sector watch Circa 1903

Unusual silver sector watch by Record Watch Co.
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An unusual Swiss silver open faced retrograde keyless lever sector watch, circa 1903. Oval shaped gilt finished jewelled lever movement. Inscribed silver cuvette. Oval shaped white enamel dial, fan form retrograde Arabic hour numerals, black and red Arabic minute divisions. Fan shaped polished case, scrolled shoulders at the crown, chased ballerina to the back, star burst design behind, entwined bow, hinged back. Cuvette, dial and movement signed.
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Diameter: 59.5 mm
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Signed: Record Watch Co. S.A. Sector Watch Tramelan