细节
Thomas Prest: An unusual and rare 18ct gold open face split second stop watch with sectors for hours and minutes
signed Thos. Prest, Chigwell, no. 527, London hallmark 1840
the frosted gilt full plate movement with chain fusee, bimetallic balance with diamond endstone and lever escapement, the gold dial plate engraved overall with scroll and floral decoration, large eccentric seconds ring with Arabic ten second divisions with two blued steel seconds hands, one being stopped by a button in the pendant, both being stopped by a lever under the bezel, two sectors for Roman hours and Arabic minutes, hand set square above 60, in engine turned case with hinged cuvette, with a length of gold chain containing lapis lazuli beads and a gold watch key movement signed and numbered
52mm