Cartier against Tissot
Cartier WSSA0018 vs Tissot T1374071109100
10 published specifications differ between these two. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | Tissot PRX 40mm Powermatic 80, green dialT1374071109100 | |
|---|---|---|
| Case | Steel case, large model, case width 39.8 mm | 316L stainless steel, 40.00 mm wide by 39.50 mm long |
| Diameter | 39.8 mm | 40 mm |
| Thickness | 9.38 mm | 10.93 mm |
| Water resistance | Water-resistant up to 10 bar (approx. 100 meters/328 feet) | Water-resistant up to a pressure of 10 bar (100 m / 330 ft) |
| Crystal | Sapphire crystal | Sapphire with one antireflective coating on bottom side |
| Dial | Silvered opaline, with steel sword-shaped hands | Green, with index markers and Super-LumiNova on the hands |
| Bracelet | Steel bracelet with SmartLink adjustment system, plus a second bracelet in calfskin; both fitted with the QuickSwitch interchangeability system | Stainless steel, reference T605046447, interchangeable quick release |
| Clasp | Interchangeable steel folding buckle | Butterfly clasp with push-buttons |
| Movement | Mechanical movement with automatic winding | Swiss automatic |
| Movement notes | Cartier publishes no power reserve, lug width or lug-to-lug figure for this reference. | Patented Nivachron balance spring. Date. Total weight 138.00 g. Country of manufacture given as Switzerland, with a stated two-year warranty. Tissot does not name a calibre on this page. |
Stated for one, not the other
These rows cannot be compared, because one maker publishes the figure and the other does not. An empty cell is a gap in the manufacturer's documentation, not a gap in the watch — and not a licence to fill it in from the other column.
| Lug to lug | not stated | 39.5 mm |
|---|---|---|
| Lug width | not stated | 12 mm |
| Bezel | not stated | Stainless steel |
| Case back | not stated | See-through caseback |
| Crown | 7-sided crown set with a faceted synthetic spinel | not stated |
| Calibre | Caliber 1847 MC | not stated |
| Power reserve | not stated | 80 hours |
What the differences cost you
Each note below follows from the published figures in the tables above — what they mean for intake, for a listing, and for the handover. Nothing here estimates a price or a margin.
You will have to measure one of these
Lug to lug is published for the T1374071109100 but not for the WSSA0018. It is the figure that actually predicts fit, so measure the WSSA0018 yourself with callipers and say in the listing that the number is your own measurement, not the maker's.
A visible difference in how they wear
1.5 mm of thickness separates these, with the T1374071109100 the taller at 10.9 mm. That is the difference between a watch that goes under a cuff and one that catches on it — worth a photograph from the side rather than a number in a table.
What to check on each
WSSA0018
- Establish whether both bracelets are present. Cartier ships this reference with a steel bracelet and a second calfskin one, so a watch arriving with only the steel is an incomplete set.
- Work the QuickSwitch release on both bracelets and refit each once. It is the mechanism that makes the second bracelet usable, and a seized release turns a two-bracelet watch into a one-bracelet watch.
- Run the SmartLink sizing through a link removal and refit. It is toolless by design, the pushers are small, and a bent one is the commonest damage on this bracelet.
T1374071109100
- Treat the bracelet as part of the case. At a published 12 mm lug width on a 40 mm watch, this is an integrated design and a damaged or missing bracelet is not solved by fitting a strap from the drawer.
- Record the bracelet reference T605046447 and check it against the watch. Bracelets are model-specific here and a bracelet from another PRX will not sit correctly.
- Work the butterfly clasp repeatedly and check both sides latch. A butterfly clasp hides its mechanism inside the bracelet, so it is rarely inspected and its springs carry the whole weight.
Sources
- Cartier official product page for reference WSSA0018 (Santos de Cartier, large model, steel) - Santos watch; Large model; Mechanical movement with automatic winding; Caliber 1847 Mc; Steel case; 7-sided crown set with a faceted synthetic spinel; Silvered opaline dial; Steel sword-shaped hands; Sapphire crystal; Steel bracelet with SmartLink adjustment system; Second bracelet in calfskin; With interchangeable steel folding buckle; Both bracelets are fitted with the QuickSwitch interchangeability system; Case width: 39.8 mm; Thickness: 9.38 mm; Water-resistant up to 10 bar (approx. 100 meters/328 feet). No power reserve, lug width or lug-to-lug figure is published on this page — retrieved 2026-09-23
- Tissot official product page for reference T1374071109100 (Tissot PRX 40mm) - SKU: T1374071109100; Weight (g): 138.00; Warranty: 2 Years of Warranty; Country of manufacture: Switzerland; Length (mm): 39.50; Width (mm): 40.00; Thickness (mm): 10.93; Lug width (mm): 12.00; Water resistance: Water-resistant up to a pressure of 10 bar (100 m / 330 ft); Case material: 316L stainless steel; Case options: See-through caseback; Bezel Material: Stainless steel; Crystal: Sapphire with one antireflective coating on bottom side; Movement: Swiss automatic; Power reserve (hours): 80; Functions: Patented Nivachron balance spring; Main Functions: Date; Dial colour: Green; Indexes: Index; Luminescent material on the hands: Super-LumiNova; Strap/Bracelet reference: T605046447; Strap material: Stainless steel; Strap colour: Grey; Buckle: Butterfly clasp with push-buttons; Bracelet option: Interchangeable quick release bracelet — retrieved 2026-09-22
Not affiliated with Cartier or Tissot. Specifications are read from each manufacturer's own published documentation on the dates shown and may change; the manufacturer's current documentation governs.