Mido Chronograph Valjoux
In 1974, Mido released a chronograph equipped with one of the best-known movements in the world of watchmaking: the Valjoux 7750 movement. This movement was hugely successful at the time thanks to its reliability, accuracy, and ease of manufacture.
The 7750 was quite a large calibre, with a diameter of 30 mm. It measured 7.90 mm in height and oscillated at a frequency of 28,800 vibrations per hour, which allowed for a high degree of accuracy when using the chronograph function.