English gold fusee lever in a 18 carat gold case Circa 1842

An English fusee and chain lever in a gold open faced case, circa 1842. Gilt full plate key wind movement with fusee and chain. Engraved cock with diamond endstone, polished steel regulator, the index on the plate. Gilt three-arm balance with blue steel spiral hairspring. English lever escapement with dust cover.
Signed off-white enamel dial with subsidiary seconds, Roman numerals, blue steel spade hands.
Engine-turned 18 carat open faced case with ribbed band. Push button on top of the pendant to open the spring-loaded back cover for winding. Movement signed.
–
Diameter: 44 mm
–
Weight: 67 g
–
Signed: John Ashton April 1842
–
Contains 28 grams of 18 carat gold.