Orologio da polso cronografo Eberhard Pre-Extrafort in oro 18K, anni '30Elegant and rare Eberhard & Co. Pre Extrafort chronograph wristwatch, in 18K gold and dating back to the 30s. This watch is the interesting predecessor of the Extrafort line, the most famous and most successful line of Eberhard & Co. chronographs. Equipped with two counters (one for continuous seconds and one for the minute adder), it still has the original dial. An interesting detail is the monopusher movement, which contains the start, stop and