AMERICAN HUNTER CASE POCKET WATCH, SIGNED KNAPP, 1880 Four body 18K gold case finely chased, decorated on both sides with centered motif engraved and enameled  with “saving cut” technique. White enamel dial, Roman hour numerals, sunk subsidiary seconds dial, Blued Berguet hands.  Key-less movement signed “Charles Knapp 60257”, lever escapement, bimetallic cut compensated balance with screws. Diameter Ø: 45 mm Note: broken glass.