1906 Historical Breitling Pocket Watch Car Driver's Speedometer Chronograph 6m.

For that, the policeman would have had to be able to follow the car for a minute! This counter, which also existed as a chronograph, was not the first of its kind. Léon Guinand, from Les Brenets, had patented "Le Chauffeur" chronographs in 1900, whose central hand made one revolution in 4, 5 or 6 minutes.

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