Ca. Ø51.5mm, ca. 90g, 18K gold, serial number 68109/1166, bridge movement of very fine quality, golden wheels, special lever, 2 barrels for the movement and the independent, stoppable seconds, very rare technical construction, releasing and stopping of the seconds and the flashing 1/4 second by pushing the crown, very beautiful and rare enamel dial with chronograph register, extraordinary gold and blued steel hands, in excellent condition, technically very interesting and early chronograph of very fine quality and two complications. The version of this double complication is extremely rare. Normally, the releasing and stopping is done by a pusher on the band of the case.
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