Eberhard & Co. launched their first chronograph in 1919 featuring a hinged case and single button. Then, in 1935, the company presented the two-button chronograph. Only four years after the two-button chronograph was launched, the firm introduced its first split-seconds chronograph – one of the most complex, and most coveted of all horological complications.

The present watch is fitted with an interesting and rarely seen implementation of the split-seconds chronograph complication. The start, stop and reset functions are all controlled by a single push piece that is integrated into the winding crown. The top pusher is responsible for the split-seconds function, meant to measure intermediate times without interrupting the timekeeping of an event. Appearing to look like a third chronograph pusher, the lower pusher at 4 o’clock instead works as a “stop and lock” mechanism controlled by simply sliding the bottom button up towards the crown. When the slide is moved upwards, the precise time is protected, and can be recorded by the user. The lock prevents the accidental actuation of the chronograph’s pushers that would result in losing the measurement.

Housed in an oversized case, the watch stands out with its extraordinary good looks. The silvered dial is beautifully accented with a very thin, mirrored copper-colored ring separating the chronograph seconds chapter ring and the outer telemètre scale. Additionally, the dial features a lovely snail-shaped tachometer scale at its center. The case is well preserved, retaining crisp edges and sharp lines along the stepped bezel and lugs, illustrating how carefully it was worn over its 75-year life.