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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →The Tissot PRX Chronograph is a 42 mm automatic chronograph with a 1970s-inspired 3-6-9 dial layout, a steel integrated-style bracelet, and a 100 m stated water-resistance rating. Tissot lists the Valjoux A05.H31 movement, but dimensions and power reserve vary by reference. The specifications below are for the white-dial T1374271101100 unless noted; they describe the manufacturer’s listing, not independent wear or timekeeping tests.
Which PRX Chronograph is this review about?
“PRX Chronograph” covers multiple dial colors and references, so check the full reference on the watch or its documentation before applying a specification to a particular example. Tissot’s U.S. listings include white-dial T137.427.11.011.00, green T1374271109100, blue-gradient T1374271104101, and another white-dial listing, T1374271101101. The cited product page is for T1374271101100, also a white-dial configuration. Reference formatting can differ between listings; match the complete code rather than relying on dial color alone.
Tissot’s model page describes the PRX case shape as dating to 1978 and presents the Chronograph as a 1970s-inspired sports watch. That is the manufacturer’s historical and stylistic framing, rather than independent historical corroboration.
What are the specifications of the listed model?
| Specification | T1374271101100 listing |
|---|---|
| Case width | 42.00 mm |
| Case length | 41.50 mm |
| Case thickness | 14.54 mm |
| Case material | 316L stainless steel |
| Crystal | Sapphire with anti-reflective coating on the underside |
| Caseback | See-through |
| Movement | Swiss automatic chronograph; Tissot names the Valjoux A05.H31 |
| Chronograph display | Central 60-second hand, 30-minute counter, and 12-hour counter |
| Date | Yes |
| Power reserve | 68 hours, according to the cited listing |
| Water resistance | 10 bar (100 m / 330 ft), as stated by Tissot |
| Bracelet and clasp | Stainless steel bracelet; butterfly clasp with push-buttons |
| Bracelet reference | T605047903; described by Tissot as interchangeable/quick release |
These are manufacturer-listed specifications for the cited U.S. product page, accessed October 8, 2026. Check the exact reference’s listing for its current details. The official listing is Tissot PRX 42mm, model T1374271101100.
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- Case Size: 42.00 mm, Band Width: 13, Case Thickness: 14.54 mm
- Automatic movement, 316L stainless steel case, Index dial type, Date
- Stainless steel strap/bracelet, interchangeable quick release bracelet,butterfly clasp with push-buttons closure
- Water-resistant up to a pressure of 10 bar (100 m / 330 ft): suitable for short periods of recreational swimming and showering, but no diving or snorkeling.
- 2 Year International Warranty
How thick is the PRX Chronograph, and what does that mean?
Tissot lists this reference at 14.54 mm thick, with a 42.00 mm width and 41.50 mm length. Thickness is a substantial part of the watch’s dimensions, particularly for a chronograph intended to wear as a sports watch. Those measurements alone cannot establish how it sits on an individual wrist: wrist shape, bracelet sizing, and personal fit all matter. No measured wrist-fit or wear observations are available for this review.
What movement and chronograph layout does it use?
Tissot identifies a Swiss automatic chronograph and names the Valjoux A05.H31. Its display combines a central 60-second chronograph hand with 30-minute and 12-hour counters in the familiar 3-6-9 arrangement, plus a date on the cited reference. Tissot’s product description calls the reserve an “extended 60-hour power reserve,” while the specification listings give reference-dependent figures. For T1374271101100, the listed figure is 68 hours; other references are listed at 65 hours, so a single reserve figure should not be generalized across the range.
Rank #2
- Case Size: 42.00 mm, Band Width: 13, Case Thickness: 14.54 mm
- Automatic movement, 316L stainless steel case, Index dial type, Date
- Stainless steel strap/bracelet, interchangeable quick release bracelet,butterfly clasp with push-buttons closure
- Water-resistant up to a pressure of 10 bar (100 m / 330 ft)
- 2 Year International Warranty
What do the bracelet, crystal, and water rating tell you?
Bracelet and clasp
The cited specification lists a stainless steel bracelet with a butterfly clasp operated by push-buttons. Tissot describes the bracelet as interchangeable/quick release and gives reference T605047903. The listing does not establish how the clasp adjusts on the wrist or whether third-party straps fit; confirm compatibility and the exact replacement part before ordering.
Crystal and caseback
The crystal is sapphire with an anti-reflective coating on its underside, and the caseback is see-through. These are construction details from Tissot’s listing, not a claim about scratch performance from independent testing.
Rank #3
- Case Size: 42.00 mm, Band Width: 13, Case Thickness: 14.54 mm
- Automatic movement, 316L stainless steel case, Index dial type,
- Stainless steel strap/bracelet, interchangeable quick release bracelet,butterfly clasp with push-buttons closure
- Water-resistant up to a pressure of 10 bar (100 m / 330 ft)
- 2 Year International Warranty
Water resistance
Tissot states 10 bar, equivalent in the listing to 100 m / 330 ft. Treat this as the manufacturer’s rating, not a guarantee that a particular watch is suitable for every water activity or that its seals remain sound indefinitely. Tissot says its watch cases undergo several tests, including a water-resistance check, but that general company statement is not independent documentation of testing on an individual example. For activity-specific guidance and care, consult Tissot and have the watch’s condition assessed when appropriate.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Tissot PRX Chronograph worth it?
Whether it is worth buying depends on the fit and features you want, as well as the exact reference and price available to you. The manufacturer’s specifications make it a clearly defined option if you want an automatic chronograph with a 3-6-9 display, steel bracelet, sapphire crystal, see-through caseback, and a stated 100 m rating. Its listed 14.54 mm thickness and 42 mm width are important dimensions to assess in person if case height or wrist fit is a priority.
Rank #4
- Tissot PRX Digital Quartz Black Dial Men's Watch T1372631105000
This is not a hands-on verdict: no physical sample was tested for wrist comfort, bracelet articulation, clasp operation, legibility, pusher feel, or measured timekeeping over a stated period. Nor do the available facts establish a current price comparison or performance advantage against other automatic chronographs. Before buying, verify the full reference, its listed reserve, and the seller’s current price and return terms; try the watch on if fit is decisive.
Quick Recap
Best Value
- Case Size: 41.00 mm, Band Width: 20, Case Thickness: 14.19 mm
- Automatic movement, 316L stainless steel case, Index dial type
- Stainless steel bracelet, interchangeable quick release bracelet,butterfly clasp with push-buttons closure
- Water-resistant up to a pressure of 10 bar (100 m / 330 ft): suitable for short periods of recreational swimming and showering, but no diving or snorkeling.
- 2 Year International Warranty
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
