English open faced lever with stop/start seconds Circa 1891

An English 18 carat gold keyless wind open faced pocket watch with stop/start seconds, Chester hallmark for 1891. Gilt 3/4 plate English lever movement, cut and compensated bimetallic balance. White enamel dial, black Roman numerals, black outer 1/5th second divisions, gilt spade hands and centre seconds. Polished hinged case, engraved initials to reverse. Movement signed, case stamped ‘SV’.
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Diameter: 53 mm
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Signed: John Ashworth & Co Manchester