The Cartier Santos WSSA0010 is the medium model of the 2018 Santos relaunch, and for many collectors it is the sweet spot of the entire line. At 35.1 mm, its proportions sit closest to the original Santos design, it wears comfortably on almost any wrist, and it has become one of the most popular unisex Cartier references of the modern era. Produced for several years before newer medium references took over, the WSSA0010 is everywhere on the pre-owned market — which means a lot of owners are now looking for the right replacement strap.
This guide explains the correct strap size for the WSSA0010 and the most popular Helvetus strap options for this model.
Cartier Santos WSSA0010 Strap Size and Fit
Sizing comes first, especially with Cartier's quick-release system. For the Cartier Santos WSSA0010:
- Model: Santos de Cartier, medium model
- Case width: 35.1 mm
- Case shape: square
- Strap system: Cartier QuickSwitch (tool-free interchangeability)
This means the watch requires a 19mm (Medium) strap made for the Santos quick-release system. When ordering, simply select the 19mm (Medium) option on the product page.
Keep in mind that a regular 19mm strap will not fit. The Santos case has no conventional lugs, so only straps designed for the QuickSwitch system will lock in properly and follow the line of the case. All Helvetus Santos straps are built for exactly this fit.
A Medium With a Big Following
When Cartier revived the Santos in 2018, the medium model quietly became the connoisseur's pick. Its case size echoes the proportions Louis Cartier gave the very first Santos back in 1904, and it works equally well on men and women — one watch, shared easily, styled a hundred ways.
That versatility is exactly why the QuickSwitch system matters so much on this reference. Swapping the strap takes seconds and requires no tools, so many owners keep two or three options in rotation: one for the office, one for weekends, one for summer. It also keeps the original steel bracelet out of harm's way, which pays off if you ever sell or trade the watch.
The Best Straps for the Cartier Santos WSSA0010
Helvetus offers rubber and leather straps made specifically for Santos quick-release models, including the WSSA0010. You can browse every compatible option here: Cartier Santos Quick Release Strap Collection.
Below are the most popular choices among owners of this reference, matched to its silvered dial, blued hands, and steel case.
Black Rubber Strap
Black rubber is the bestseller across the Santos range. On the WSSA0010 it sharpens the contrast with the silvered opaline dial and gives the medium case a sportier, more modern presence on the wrist. It is also the most practical choice for daily wear, travel, and anything involving water. Black Rubber Strap for Cartier Santos Quick Release
Blue Rubber Strap
Look closely at the WSSA0010 and you will find blue everywhere: the blued-steel sword hands and the faceted blue spinel set into the crown. A blue rubber strap picks up both details, which makes it one of the most popular strap choices for this exact dial configuration. The watch suddenly looks intentional from every angle. Blue Rubber Strap for Cartier Santos Quick Release
Light Blue Rubber Strap
On the medium case, light blue has become a favorite. It gives the WSSA0010 a fresh, relaxed character that suits its unisex proportions perfectly — especially in spring and summer. If your Santos needs to feel like a different watch on vacation, this is the one. Light Blue Rubber Strap for Cartier Santos Quick Release
Black Leather Strap
For evenings and more formal settings, black leather remains the timeless option. It respects the classic character of the Santos, dresses the medium case up beautifully, and pairs with essentially everything. Black Leather Strap for Cartier Santos Quick Release
For something with a design twist, the White Rubber Strap with Screws mirrors the exposed screws of the Santos bezel and creates a striking clean look against the steel case.
Compatible With Other Santos References
Every strap above is made for the Santos quick-release system, so they also fit other modern Santos de Cartier references in the same size family. If you add another Santos to the collection later, your straps come along. See the full range here: Cartier Santos Quick Release Strap Collection.
Final Thoughts
The WSSA0010 proves that a great watch does not need to be big — it needs to be right. With the correct 19mm quick-release strap, this medium Santos becomes one of the most adaptable watches you can own.
Helvetus is a leading name in aftermarket straps for luxury watches, trusted by more than 50,000 customers worldwide. Every Santos strap is engineered for a precise fit on the WSSA0010, rubber straps come with a lifetime warranty, and all orders ship free worldwide with no import costs.
Find the perfect strap for your Santos WSSA0010 in the Cartier Santos Quick Release Strap Collection.
