Extra-Long Strap for Cartier Santos-Dumont
The Cartier Santos-Dumont is a slim, elegant dress watch, but its factory straps run out of length well before they reach a larger wrist. Most makers stop around an 8.5-inch fit, which leaves big-wristed owners buckling on the last hole or going without. This build is an extra-long black crocodile strap for the Santos-Dumont, cut at 105/160 mm so the watch finally sits where it should.
Strap specifications
| Leather | Black crocodile |
| Length | 105/160 mm (extra-long) |
| Buckle width | 16 mm |
| Buckle | Classic, stainless steel |
| Spring bar | Quick release |
Why these choices
An extra-long strap is built for wrists in the 8.5 to 12 inch range, the sizes standard straps rarely cover. At 105/160 mm the strap gives 265 mm of total length, so the buckle lands in a comfortable middle hole instead of the very last one. Black crocodile keeps the dress character the Santos-Dumont is known for — the leather softens with wear and takes on a hand-rubbed patina, so it reads formal without looking stiff.
Quick-release spring bars let the strap come off in seconds, which matters on a watch an owner is likely to dress up and down. The 16 mm buckle keeps the taper proportional to a slim case, and because the strap is cut to the watch's own lug width, it seats cleanly with no overhang.
You can see the full length range in our extra-long strap collection and the leather options among our crocodile straps and Cartier straps.
★★★★★
“The OEM strap was short and stiff. This replacement is wonderful - nice quality, supple, longer, and made to spec as I used the original buckle. Perfect fit. Will be buying more.”
Jason L. · Verified purchase · Black crocodile strap
FAQ
How long is an extra-long strap for the Cartier Santos-Dumont?
This one is 105/160 mm, or 265 mm total, which suits wrists from about 8.5 to 12 inches. Give us your wrist size and we set the length so the buckle lands mid-strap.
Does it use quick-release spring bars?
Yes. This strap ships with quick-release bars so you can swap it without a tool. Order it to your lug width for a flush fit against the case.
Every strap is made to order and built to your measurements. Allow about 2–3 weeks from order to delivery. Start with the black crocodile strap.