Swiss. An 18k Gold Two-Train Hunter Case Keyless Lever Pocket Watch with Center Seconds and Jump Quarter Seconds

Swiss. An 18k Gold Two-Train Hunter Case Keyless Lever Pocket Watch with Center Seconds and Jump Quarter Seconds
Unsigned, Case No. 5979, Stamped HED, Mid 19th Century
Nickel-finished two-train jewelled lever movement, bimetallic compensation balance, gold cuvette, white enamel dial Roman numerals, outer calibrated fifth seconds ring with Arabic fifth divisions, subsidiary jump quarter seconds, center seconds hand, engine-turned circular case, start/stop button in the coin-edged band, hinged back, case and cuvette numbered, case stamped HED
54mm diam.