The quick answer.
Tissot PRX Powermatic 80 Black is a 40 mm everyday watch at $829.91. We recommend it for someone who wants one steel automatic that matches every outfit and never looks out of place.
Why it belongs on the shortlist.
Black is the PRX colour that draws least attention to itself. It lets the polished bevels and the bracelet do the talking, works with a suit or a T-shirt, and is the easiest PRX to wear every day without tiring of the dial.
Our verdict: the PRX for people who want one watch.
Every PRX shares the same case, bracelet and movement, so the dial is the real decision. Black is the most versatile of them. It reads as smart rather than flashy and goes with every strap colour and outfit. If you are buying one automatic to wear to everything, this is the safe choice that does not feel like a compromise.
What you get for the money.
Tissot rates the Powermatic 80 for 80 hours, which means the watch keeps running over a weekend off the wrist. It also fits a Nivachron balance spring to resist everyday magnetism, a sapphire crystal with antireflective coating underneath, and 100 m of water resistance. That is a strong specification for a Swiss automatic at this price.
Size and fit.
The case is 40 mm wide, 39.5 mm long and 10.93 mm thick. Because the bracelet runs straight out of the case, it wears flatter and more compact than many 40 mm watches, but measure your wrist if you are under about 6.5 inches; the 35 mm PRX is the better size for smaller wrists.
Buying it from Watches of America.
Tissot lists this reference at $850; Watches of America lists it at $829.91 with one-to-three-day shipping. The bigger saving is our 10% code, which is supplied for the retailer; confirm it applies to this reference at checkout and check warranty terms before ordering.
The details, at a glance.
- Reference
- T137.407.11.051.00
- Case diameter
- 40 mm
- Lug-to-lug
- Not published by the brand
- Thickness
- 10.93 mm
- Integrated lug width
- 12 mm
- Case
- Stainless steel
- Crystal
- Sapphire with antireflective coating on the underside
- Movement
- Powermatic 80 automatic
- Rated power reserve
- 80 hours
- Water resistance
- 100 m
- Strap / bracelet
- Integrated stainless-steel bracelet, butterfly clasp with push-buttons, quick-release
What draws us in
- Black waffle dial that keeps the focus on the case shape
- Powermatic 80 with an 80-hour rated reserve and Nivachron balance spring
- Quick-release bracelet and see-through caseback
Before you choose
Black dials show less of the waffle texture than lighter colours. The integrated bracelet decides the fit, and Tissot publishes a 39.5 mm case length rather than an effective lug-to-lug.
Who it suits.
Someone who wants one steel automatic that matches every outfit and never looks out of place.
When to choose something else.
Choose the ice-blue or green PRX if you want the dial to be the talking point, or the quartz PRX if you do not need an automatic.
Warranty, returns and ownership.
Watches of America lists a one-year retailer warranty and a 30-day return window on eligible items; conditions and a restocking fee may apply. Tissot’s own warranty is described for purchases through its boutiques and authorized retailers, and the listing does not say whether it carries over here, so ask Watches of America to confirm in writing if manufacturer coverage matters to you. Shipping is listed as one to three business days with free shipping available.
Closest alternatives.
- Tissot PRX Powermatic 80 Ice Blue: The same watch with the PRX’s most distinctive dial, and a lower listed price at Watches of America.
- Tissot PRX Powermatic 80 35mm Green: The 35 mm PRX, for smaller wrists or a more vintage proportion.
- Tissot PRX 40mm Quartz Light Green: The quartz PRX at about half the price, if you do not need an automatic.
Think beyond the diameter.
The brand does not publish lug-to-lug for this reference, so use the case width, thickness and strap length to judge fit. Use our wrist-fit guide and compare the proportions with a watch you already enjoy wearing.
Watches of America partner code and offer terms. Our supplied code is SEBASTIANBASSOL for 10% off. Check the exact model and variant at the store, then confirm eligibility and the final total at checkout.
Where to buy.
Specifications and product photography: Tissot product page (checked October 16, 2026). Find PRX Powermatic 80 Black at Watches of America through our partner link and search for the selected option there. How we choose.
A few good questions.
What is the discount code for the Tissot PRX Powermatic 80 Black?
The Watches of America discount code is SEBASTIANBASSOL for 10% off at watchesofamerica.com. We have not tested it on this exact model, so confirm the saving in your order summary. Every code and tested price: https://watchritual.com/promo/watches-of-america
How much is the Tissot PRX Powermatic 80 Black at Watches of America?
Watches of America listed T137.407.11.051.00 at $829.91 USD on October 17, 2026, against $850 on Tissot’s US site. Our supplied 10% code may lower it further; confirm it applies at checkout.
What size is the Tissot PRX Powermatic 80 Black?
Tissot lists a 40 mm wide, 39.5 mm long and 10.93 mm thick case with a 12 mm integrated lug width, water-resistant to 100 m.
Is the Tissot PRX Powermatic 80 Black automatic?
Yes. It uses the Powermatic 80 automatic with a rated 80-hour reserve and a Nivachron balance spring, visible through a see-through caseback.
