7,670 CHF
“CHRONOTACHYMETRE” Omega, Bienne, No. 3141809. Made in 1906. Very fine and rare gun-metal and copper gilt keyless double-dialed pocket watch with chronograph, semi-instantaneous 15-minute register and two tachometer scales, one being Omega’s patented (CH) scale No. 8760. This watch is sold with a box, Certificate of Authenticity and 2-year Omega guarantee. hree-body, "bassine", glazed on both sides with gilt bezels, bow hinges and crown. White enamel, upright dauphine numerals, outer minute/seconds divisions divided into fifths, sunk 15-minute register the first five minutes in different colors corresponding to the colors of the outermost tachometer scale running from 10.5 to 250 km/h. Gold "spade" hands. The other side with white enamel chapter ring printed with 1/5th second timming scale and tachymeter graduated from 7-180 kph mm. Cal 19/22’’’LOB, frosted gilt, 3/4-plate, 15 jewels, straight line lever escapement, cut bimetallic compensation balance with Breguet balance spring, "swan-neck" micrometer regulator, the chronograph work is set on a separate plate fastened to the back plate. Dial signed. Diam. 57.5 mm. Notes Cal 19/22’’’LOB L = Lépine O = Omega B = 15-17 jewels, Breguet balance spring adjusted to one minute per day. For a note on the Chronotachymètre, see lot 69.
Auctioneer:
Antiquorum
Date:
2007-04-15
