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Choose the Tissot PRX quartz if its 1978-inspired design and a size that suits your wrist are the priority. Choose the Tissot PRC 100 Solar if you prefer solar charging, its dodecagonal bezel and an available size that fits. Both are quartz watches, but their power systems differ; the available specifications do not establish a tested timekeeping winner.
What separates the PRX quartz from the PRC 100 Solar?
The key difference is power. The PRX listing is for a quartz watch, while the PRC 100 Solar uses solar quartz. Tissot says the PRC 100 Solar charges from natural and artificial light and includes an End of Energy indicator. The PRX collection also includes automatic models, so make sure the specific PRX listing you consider is quartz.
The design languages differ, too. Tissot presents the PRX collection as a tribute to its 1978 original. The PRC 100 Solar brings a dodecagonal bezel to the comparison. These are aesthetic distinctions, not evidence that one keeps time better.
Compare the sizes and verified specifications
| Detail | Tissot PRX quartz | Tissot PRC 100 Solar quartz |
|---|---|---|
| Power | Quartz on the specific listings identified as quartz; the PRX collection also includes automatic watches. Tissot US PRX collection | Solar quartz; Tissot says the system charges from natural and artificial light. Tissot US PRC 100 Solar 34 mm |
| Available sizes in the cited US listings | Quartz examples at 35 mm, 40 mm and 41 mm; choose a specific reference before comparing fit. Tissot US PRX collection | 34 mm and 39 mm examples. The cited 34 mm reference is T1518221109100; the cited 39 mm reference is T1514221109100. 34 mm listing; 39 mm listing |
| Verified details for the cited 34 mm model | Not stated on the cited collection page; check the exact PRX reference for its specifications. Tissot US PRX collection | Stainless steel case, sapphire crystal, date, 10 bar (100 m / 330 ft) stated water resistance, 18 mm lug width and interchangeable quick-release bracelet. Tissot US PRC 100 Solar 34 mm |
| Lug width | Not stated on the cited collection page; verify the exact reference. Tissot US PRX collection | 18 mm for the cited 34 mm reference; 20 mm for the cited 39 mm reference. Check the selected model before buying a strap. 34 mm listing; 39 mm listing |
| US listed price snapshot | $450 for the 40 mm quartz listing on Tissot’s US collection page at the time checked. Tissot US PRX collection | $575 for the cited US 34 mm and 39 mm listings at the time checked. These are volatile listed prices, not guaranteed or global prices. 34 mm listing; 39 mm listing |
Which one should you buy?
Choose the PRX quartz if its design and fit work for you
The PRX is the more natural choice if you want the collection’s 1978-inspired look and find a quartz reference in a size you like. Because the collection spans multiple quartz sizes and also includes automatic models, compare exact references rather than assuming every PRX shares the same movement or specifications.
#1 Best Overall
- Case Size: 40.00 millimeter; Band Width: 12 millimeter; Case Thickness: 10.40 millimeter
- Swiss quartz movement, 316L stainless steel case, Index dial type, date
- Stainless steel bracelet, butterfly clasp with push-buttons closure
- Water-resistant up to a pressure of 10 bar (100 meter / 330 feet): Suitable for short periods of recreational swimming and showering, but no diving or snorkeling.
Choose the PRC 100 Solar if solar charging is a priority
The PRC 100 Solar suits a buyer who wants solar quartz, the End of Energy indicator and its distinctive bezel design. Tissot lists 34 mm and 39 mm versions in the cited US pages; use the exact reference to confirm fit and strap compatibility.
What to check before purchasing
- Confirm that the PRX reference is quartz, not one of the collection’s automatic models.
- Compare the case size and lug width of the exact references you are considering.
- For PRC 100 Solar, verify the selected size and attachment compatibility before choosing a replacement strap.
- Check Tissot’s current regional listing for specifications, availability and price; the cited prices are US snapshots and can change.
- Do not assume the PRX has the same water resistance, crystal or other specifications as the cited PRC 100 Solar 34 mm. The cited PRX collection page does not establish those reference-specific details.
What the available evidence does not show
The cited official pages provide product descriptions and specifications, not independent testing. They do not establish which watch keeps time more accurately, lasts longer, or is more reliable over time. The PRX comparison is especially dependent on the exact quartz reference, since the cited source is a collection page rather than a specific model specification.
Quick Recap
Best Value
- Case Size: 40.00 mm, Band Width: 12 mm, Case Thickness: 10.40 mm
- Swiss quartz movement, 316L stainless steel case, Index dial type, Date
- Stainless steel 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.
Rank #4
- Case Size: 35.00 mm, Band Width: 11, Case Thickness: 9.60 mm
- Quartz movement, , Index dial type, Date
- Stainless steel strap/bracelet, closure
- Water-resistant up to a pressure of 10 bar (100 m / 330 ft)
- 2 Year International Warranty
Rank #3
- Case Size: 40.00 mm, Band Width: 12, Case Thickness: 10.40 mm
- Quartz 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
Rank #2
- Case Size: 40.00 mm, Band Width: 12, Case Thickness: 10.40 mm
- Quartz 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
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.
