This lot is offered without reserve.

Heuer. An oversized rare stainless steel cushion-shaped chronograph wristwatch with date and slide rule bezel

SIGNED HEUER, CALCULATOR, AUTOMATIC CHRONOGRAPH, CIRCA 1975

Details

Heuer. An oversized rare stainless steel cushion-shaped chronograph wristwatch with date and slide rule bezel
Signed Heuer, Calculator, Automatic Chronograph, circa 1975
Cal. 15 14''' gilt-finished lever movement, 17 jewels, deep blue dial, applied luminous baton numerals, orange luminous hands, outer one fifth seconds divisions, two subsidiary dials for 12 hours and 30 minutes registers, window for date, oversized cushion-shaped water-resistant-type case, revolving double bezel serving as calculator to convert kilometres into nautical knots, yards and miles and measures in US gallons, screw back, two round chronograph buttons in the band, crown at nine o'clock, associated stainless steel link bracelet and deployant clasp, case, dial and movement signed
45.5 mm. wide and 47.5 overall length

Special notice

This lot is offered without reserve.

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Lot Essay

The Heuer Calculator was a small mathematical sensation when introduced in the mid-1970s. Fitted with the calibre 12 movement, it was the first wrist computer to calculate division, multiplication, currency conversion, fuel consumption, average speed, metric to Imperial and many other handy operations.

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