Launched in 1956, the PR range designates so-called sports watches, "PR" meaning "particularly resistant" or "particularly robust".
The success of the PR range pushes Tissot, at the turning point of the years 1969-1970, to expand the range to other models and, in particular, to chronographs. A logical extension for a range whose identity is associated with motorsport ...
Thus appeared chronographs with two and three counters, cheerfully colored and powered by excellent Lemania calibres.
The version with three counters does not contain a Valjoux 72 but turns to another sure value, the Lemania 1873 movement, referenced 873 by Tissot and exactly the same base movement of the famous Omega Speedmaster 861 which caliber 1873 was originally designed for. The Omega Speedmaster “Moon Watch” chronograph, to succeed caliber 321, also of Lemania origin. Renowned for its robustness and high power reserve, it can also be found under other brands notably at Breitling, Bucherer, Chronoswiss, Baume & Mercier, among others.
The case, which conforms to the genes of the PR range, compensates for a modest diameter (36 mm excluding the crown) by the sharpness of the lines, the thickness of the sides and the diameter of the pushers.
One of the most striking features is undoubtedly the dial colors and also the bezel which isn't very easy to find in such good conditions as this one.
Overall this watch is in very good conditions with all original parts and functioning perfectly.
Certainly a landmark in early seventies chronographs and still an affordable vintage and historical chronograph with a fantastic movement.