The Tissot PRX Auto Chrono

The Tissot PRX is one of the most excellent integrated bracelet sports watches available and is a rebirth of the original 1978 Tissot Seastar. When the PRX was first released, it took the watch world by storm with its beautiful, Genta-esque design and phenomenal price tag. The PRX was initially released with a quartz movement, then shortly after an automatic movement, leading to our discussion today, the PRX Auto Chrono. 

The PRX Auto Chrono looks like it would be found on the wrist of a Formula One driver from the 1970s, specifically Mario Andretti, whose Lotus 79 livery sported the Tissot logo. With its satin-finished steel case/bracelet finishing, angular cuts and clean chronograph dial, the PRX Auto Chrono is perfect for your daily wear or time spent in the cockpit. 

The PRX Auto Chrono measures 42mm in diameter with a 41.5mm lug-to-lug and a case thickness of 14.5mm. While the watch is on the larger side, the compact lug-to-lug makes the watch feel much smaller and evens out the slightly hefty 14.5mm case thickness, bringing balance and exceptional wearability to the table. The integrated bracelet measures 27mm and aggressively tapers to 17.5mm at the clasp to create a robust yet sleek feel on the wrist. 

The movement used in the Auto Chrono is the A05 H31–an automatic chronograph calibre based on the Valjoux 7750 but modified to feature the same 3,6 and 9 chronograph layout as the Valjoux 7753. Tissot seldom uses these movements, and the main modification made for the A05 H31 compared to the base 7750 is the increased power reserve, clocking in at 60 hours. The movement is beautifully finished with a slight perlage design, seen through the sapphire display case back. 

Are you interested in checking out the track-ready PRX Auto Chrono? Feel free to check them out through Canada Watch House.