62,100 CHF
M. Balanche, La Chaux-de-Fonds, design finished on September 24, 1936, executed on May, 20, 1937.Fine and rare model of Constant Force Escapement jumping dead seconds, along with a signed and dated technical drawing of the escapement. ooden glazed box with hinged lid. Straight line lever escapement, mono-metallic balance, flat balance spring, fourth wheel equipped with concentrically set escape-like wheel which was controlled by verge-like lever escaping the teeth via control cam set on the escape wheel arbor. The whole set on a nickel plate, driving mechanism and balance spring below.Signed on the nickel plate, on the wooden base and on the drawing.Dim. Model: 25 x 15 cm., drawing 36 x 33 cm. Notes Good condition but lacking the verge-like lever.
Auctioneer:
Antiquorum
Date:
2003-04-12