Important Modern and Vintage Timepieces.

Geneva, Nov 13, 2010

LOT 483

Heuer, ?Calculator, Automatic Chronograph?, Ref. 150.633. Made circa 1972. Fine and unusual, oversized, tonneau shaped, water-resistant, self-winding stainless steel 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. D. Black with applied luminous steel baton indexes, outer 1/5th seconds scale, subsidiary dials for the seconds and 30-minute registers marked by red segments every 5 minutes, aperture for the date. Luminous orange baton hands. M. Cal. 15, 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 190 mm.