Important Modern and Vintage Timepieces

New York, Jun 08, 2011

LOT 298

Heuer Calculator, Automatic Chronograph Heuer, ?Calculator, Automatic Chronograph?, Ref. 110633. Made in the 1970's. Fine and unusual, oversized, tonneau-shaped, water-resistant, self-winding stainless steel left-handed wristwatch with round button chronograph, registers, date, bezel with slide rule and a stainless steel Heuer bracelet with deployant clasp.

C. Three-body, polished and brushed, screwed-down case back, winding-crown at 9, chronograph buttons at 2 and 4, hooded lugs, revolving double bezel serving as silde rule to convert kilometers into nautical knots, yards and miles and measures in US gallons, flat sapphire crystal. D. Navy blue with applied luminous steel baton indexes, outer 1/5th seconds scale, subsidiary dials for the 12-hour and 30-minute registers marked by red segments every 5 minutes, aperture for the date. Luminous orange baton hands. M. Cal. 12, gilt brass, 17 jewels, straight line lever escapement, monometallic balance, shock absorber, selfcompensating flat balance spring, index regulator, microrotor. Dial, case and movement signed. Diam. 45.5 mm. Thickness 15.5 mm. Approx overall length 180 mm.