细节
ROBERT GERTH. A RARE AND INTERESTING GOLD THREE TRAIN OPENFACE QUARTER REPEATING INDEPENDENT SECONDS CYLINDER POCKETWATCH WITH FIFTEEN SECOND SELF-STRIKE
signed Robert Gerth & Co., Chaux-de-Fonds, no. 1046, 1830s
the frosted gilt two train movement with cylinder escapement and 25 jewels, repeating on two gongs by depressing a plunger in the pendant, with a separate self-striking train wound independently of the two main trains striking a single blow on a third gong every 15 seconds, the white enamel dial with Roman numerals, gold moon hands, jumping sweep centre seconds activated by a slide in the band, the engine-turned case with floral decoration to the rims in high relief, milled band, the case signed and numbered - 60mm. diam.
