3,240 CHF
Grasset Patent Barrel-less Watch Isaac Grasset Patent, Genève, No. 732. Made circa 1910. Fine and rare, gun-metal and gilt keyless pocket watch without mainspring barrel built to the design of Swiss Patents No. 5019 and 14528. Three body, "bassine et filets" polished with gilt bezel-rim, hinge and bow. Glazed gilt-rimmed cuvette for viewing the movement. White enamel with Arabic numerals, outer minute track, subsidiary seconds. Gilt Louis XV hands. Notes Grasset Isaac & Cie A watchmaker and lapidary whose workshop was at 44, rue Wendt in Geneva. He applied for several patents, such as a polishing and lapidaring machine in 1892, a device to set time by means of the pendant in 1896, a micrometric index in 1899, patents No. 5019 and No. 14528 for a helical mainspring rolled around the winding stem.
Auctioneer:
Antiquorum
Date:
2009-10-04
