Editorial
The PRX Automatic Chronograph puts a full column-wheel chronograph movement into Tissot's integrated-bracelet package, arriving in 2022 as the complication flagship of the PRX line. At 42mm it reads larger than the three-hand 40mm, a size increase the Valjoux 7753 movement essentially demands. The panda dial launched first, giving this reference a clean, purposeful look that avoids the fussiness that derails many entry-level sport chronographs.
Tissot introduced the PRX Automatic Chronograph in 2022, building on the success of the three-hand PRX relaunch from 2021. The caliber is the A05.H31, Tissot's designation for the ETA Valjoux 7753, a well-regarded vertical-clutch, column-wheel automatic chronograph with 45 hours of power reserve. The 7753 is not in-house manufacture, but it is a legitimate step above the lever-clutch movements common at this price tier.
Tissot launched with a white panda dial in stainless steel; additional colorways followed through 2023 and 2024. Production is ongoing as of 2026 with no announced discontinuation.
The bracelet integration on the 42mm case uses the same end-link system as the three-hand, so check for play at the bracelet-to-case junction on any pre-owned example -- this point wears faster under active use. Chronograph pushers on the 7753 can develop stickiness if the watch sat unused for extended periods; test both pushers through a full cycle before buying. The panda dial's white registers show UV yellowing on pieces stored near windows -- inspect under good light, not under the seller's overhead LEDs.
Verify the caseback gasket has not been disturbed; the 100m water resistance depends on an intact seal, and amateur caseback openings are common on lightly worn sport watches. Crown threading should engage smoothly at all three positions without resistance.
