1969 Edox Chronographe, an authentic poor men Heuer. Manual winding movement cal. Valjoux 7733, tachymeter scale on the bezel to measure how fast an object is moving. Most tachymeters start at 400 and end at 60, but some models can show different numbers.
Christian Ruefli-Flury was a gifted watchmaker and founded a watch company in Switzerland, in 1884. He named the company Edox, which is the Greek word for the hour, and its logo is an hourglass. After Ruefli-Flurys death in 1921, Robert Kaufman-Hug took over the company and decided to invest in the production of wristwatches, instead of pocket ones. In 1955, Edox moved to a new and modern factory and since then, the company has launched a series of revolutionary watches like the Delfin and the Hydrosub lines. In 1983, after facing some problems in watchmaking, Victor Strambini bought the company. In 1988, Edox launched Les Bmonts Ultra Slim with a movement thickness of 1.4mm which made it the slimmest calendar watch ever.