细节
Moncas. An 18ct gold open face pocket watch with Massey Type III escapement
Signed Jno. Moncas, Liverpool, No. 1684. Chester hallmark 1820
The frosted gilt chain fusee movement with engraved cock inscribed Patent diamond endstone, monometallic balance, flat hairspring, Massey Type III lever escapement, the finely matted gold dial with polished Roman numerals and engraved centre field, gold hands, in engine-turned gold case with deeply chased band, movement signed and numbered
48 mm.