3101. Heuer-Leonidas. A fine mounted pair of motoring timers Heuer-Leonidas. Belle paire de chrongraphe de course Model: Super Autavia and Montecarlo Date: Circa 1970 Movement: Montecarlo, nickel lever 7714, 7 jewels, plain three arm balance, Super Autavia; Nickel lever, gilt balance with timing screws, column wheel chronograph, 17 jewels Dial: Montecarlo, Matte black dial, Arabic numerals for minutes and seconds track with 5th seconds divisions, aperture for digital hours, Autavia, matte black, Arabic numerals, outer seconds track calibrated for 5ths, subsidiary dials for minute register and constant seconds Case: For both chrome drum form case, start stop through pendant, reset button, revolving bezel with arrow Size: 55mm each, base 113mm x 58mm