Gedeon Thommen, G.T. Digital pocket watch, Thommen’s patented display; silver | Only Online Auction | Geneva, September 22, 2021
Gedeon Thommen, G.T. Digital pocket watch, Thommen’s patented display; silver, Silver (0.935), open-face, keyless-winding, round-shaped, pocket watch, with subsidiary seconds at 6 and patented digital display., Guilloché (engine-turned) case-back, with, in the centre, a circle., White enamel dial with apertures for the Arabic numerals., Movement 18’’’ ½, gilded brass, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel flat hairspring, polished steel index-regulator.Brand Gedeon Thommen, G.T., Waldenburg, near Basle
Model “G.T.”
Year circa 1890
Movement No. unnumbered
Case No. 415 887
Material silver
Diameter 51.6 mm.
Caliber 18’’’ ½, straight-line lever escapement
Weight 117.8 gr. (approx.)
Signature dial, case and movement
Accessories copy of the invention patent
