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Custom Integrated Strap for Cartier Santos Dumont
Custom Integrated Strap for Cartier Santos Dumont
Need help measuring? Open the sizing guide
1. Find your watch's lug width
The lug width is the gap between the two lugs where the strap attaches. On this watch it follows the case size — Small / SolarBeat Small = 16mm, Large / SolarBeat Large = 19mm, XL = 23mm. Pick your size above and the width is handled for you.
If your watch isn't listed: measure the gap with a millimetre ruler, or note the existing strap's width near the spring bars. Round to the nearest whole millimetre.
2. Measure your wrist
Wrap a piece of string, ribbon, or paper strip around your wrist where the watch sits. Mark where the end overlaps. Lay it flat and measure the marked length in cm or inches.
Tip: Measure with a comfortable fit — not too tight. The strap will sit at this length, with the buckle on the underside of your wrist.
3. Find your strap length
Just pick the wrist-size range you measured in step 2 from the Wrist size dropdown — we cut the exact strap length for your wrist and your chosen case size. If you know a precise length you want instead, choose Custom and put it in the Notes.
Need a custom length not on the list? Pick the closest size and write your exact requirement in the Notes field at the bottom of the configurator — we cut to spec. The buckle has multiple holes, so being within a few millimeters of the calculator's recommendation is fine.
Measure where you actually wear the watch. Know your exact length? Pick “Custom” and drop it in the Notes.
Upload a clear photo of your buckle (top + side view if possible). JPG, PNG, HEIC or WebP, up to 20 MB.
The width of the strap end that slides into your buckle or clasp. We’ve pre-selected the usual width for your Santos Dumont — if you’re reusing your own hardware, measure its inside width and pick that, or just upload the photo below and we’ll confirm it for you.
Length note: This single-fold clasp may require us to modify the strap length to suit the clasp mechanism — we'll set it for a correct fit.
Style: Bund — already included with this leather choice, no style surcharge.
We need this to size the bund pad correctly. Measure the watch case from edge to edge (not including the crown).
We do our best to match the thread to your leather, but exact matches aren't always possible — natural variations in leather and thread dye lots mean the result may be very close, not 100% identical.
Custom strap length selected — please tell us the exact length here (e.g. 110/175 mm = 110mm keeper end / 175mm tail end).
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Common questions
Your Cartier clasp
Will this strap work with my original Cartier deployant (folding) clasp?
Yes — that's exactly what we build for. Choose “I’ll use my own buckle/clasp” in the configurator and we cut both strap ends to seat in your original clasp, so you keep the buckle you already own.
Most aftermarket straps ship with a pin buckle that orphans your Cartier deployant. We don't. For listed Santos Dumont references we already know the buckle/clasp width — nothing to measure. For an unlisted or vintage reference, we'll ask you for the buckle/clasp width (with a simple measuring guide) before production.
What if I don't have the Cartier deployant, or want a spare?
We can source a Cartier-style deployant clasp for you — pick one of the Cartier-style deployant options in the configurator (Gold, Stainless steel, or Rose gold, +$30). You can also choose a standard pin buckle from our buckle options if you prefer a traditional buckle-and-tang strap.
Reference & fit
How do I know which Santos Dumont size I have?
Santos Dumont sizes — the width where the leather meets the case: Small — 15.5mm; Large — 17.8mm; XL — 19mm. Just pick your size in the configurator. For an unlisted or vintage Santos Dumont reference, email a side-profile photo and we'll confirm the correct fit before you order.
How does the strap attach to my Santos Dumont?
The Santos Dumont has a flush, integrated look — the leather end carries a hidden metal insert so it sits gap-free against the case — and it mounts on quick-release spring bars through the Santos Dumont's drilled lugs, so you can swap it by hand in seconds. Choose your size above; for an unlisted reference, send a side-profile photo and we'll match the fit.
I have a vintage or unlisted Cartier reference — how do I order?
Email us a side-profile photo of your watch showing the lug-to-case joint, plus the case-back if the reference is printed, and add any notes in the configurator. If you're using your own buckle or clasp, enter the buckle/clasp width in the configurator field and upload a photo of it. We confirm fitment within one business day before cutting.
My wrist is larger or smaller than standard — can you accommodate?
Yes. Every strap is cut to your measurement — standard lengths fit 5.0" to 8.5" wrists at no extra charge, and extra-long options reach 12" wrists for a small surcharge. Long-wrist Santos Dumont owners are a size Cartier's own straps don't offer. Use our Bespoke Fit Calculator, or enter your wrist measurement in the notes and we'll size it for you.
Order & policy
How long from order to arrival?
Production takes 3–5 business days in our workshop; allow three to five weeks from order to arrival including shipping. Priority shipping is available at checkout. We ship worldwide from Vancouver, Canada.
What is your refund policy?
Because each strap is made to order, we generally cannot offer full refunds for returns based on preference. If your strap has a manufacturing defect or a fit issue caused by our error — when we confirmed fitment with you in writing — we remake it. Contact customer service with any concern and we'll make it right.
Custom-made integrated leather strap for the Cartier Santos Dumont — a hidden metal insert in the leather end sits flush against the case with no gap, and it mounts on quick-release spring bars through the Santos Dumont's drilled lugs for tool-less swaps. Built to your reference, your leather, and your clasp. Made to order in 3–5 weeks, shipped worldwide.
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