Important Modern & Vintage Timepieces

Geneva, Nov 10, 2013

LOT 212

HEUER CALCULATOR Heuer, "Calculator, Automatic Chronograph", Ref. 110633. Sold on July 5th, 1973. ine and unusual, oversized, tonneau-shaped, water-resistant, self-winding stainless steel left-handed wristwatch with round button chronograph, registers, date, bezel with slide rule. Accompanied by the original warranty from retailer Galli, instruction booklet and original fitted box.

Three-body, polished and brushed, screwed-down case back with dedication inscription, 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. 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. Cal. 12, gilt brass, 17 jewels, straight line lever escapement, monometallic balance, shock absorber, selfcompensating flat balance spring, index regulator, micro-rotor. Dial, case and movement signed.