English gold pair cased repeating pocket watch Circa 1750

An English gold key wind repeating pocket watch by Joseph Martineau Snr, London, circa 1750. Gilt full plate fusee verge movement, pierced and engraved balance cock, end stone, silver regulation, polished hammers. White enamel dial, black Roman numerals, black outer minute dots and gilt hands. 18 Carat pair case, pierced and engraved inner and outer, repousse to outer depicting classical hunting scene with cartouches depicting weapons and dog heads, inner cap, bell secured by 1 screw. Movement  and cap signed. With outer red leather case.
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Diameter: 49 mm
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Signed: Joseph Martineau Snr London