Atelier finder
Spring Bars for Tudor
Black Bay, Pelagos, Heritage, Ranger. Tudor factory specifications, Swiss Standard steel.
Technical glossary
Black Bay 41 vs 58 vs 54: three different lug widths
Tudor Black Bay 41 → 22mm lugs. Black Bay 58 → 20mm. Black Bay 54 → 20mm (with tighter bracelet width than the 58). The finder above distinguishes automatically, but if you order from catalogue verify 22 for the 41 and 20 for the 58/54 — it's among the most frequent mix-ups I see at the bench. Standard 1.8mm pin across the Black Bay sport line.
Pelagos: titanium + 22mm + specific bracelet
Pelagos 25600TN and 25600TB → 22mm, but with titanium lugs: the standard 1.8mm steel pin works, but for material consistency you'd switch to a titanium pin (softer, handle carefully when fitting). Pelagos 39 → 21mm. Pelagos FXD is locked: spring bars fixed for life, not replaceable without Tudor intervention. For those I don't sell bars — I only sell straps with compatible passes.
Vintage Tudor 7900-7928: the reference trap
On pre-1968 Tudor Submariners (ref. 7900-7928 with small crown) lug width is 20mm but lugs are cone-style — they need specific spring bars with sleeve at effective 19.5mm. On Submariners 7016, 9411, 76100 → closed 20mm standard lugs. On modern Heritage (ref. 79320, 79220) → 22mm with drilled lugs replicated from the historical reference. When in doubt, send me the reference plus a side case photo: the trap shows up often.
Compatible
Other compatible watches
Domande ricorrenti
Frequent questions
How do I work out the lug width without a caliper?
The manufacturer's spec sheet always lists it. If you don't have it, take a ruler and measure between the inside faces of the lugs — the value rounded to the nearest even millimetre is almost always the right one. To be sure, the finder above starts from the reference and gives you the measurement without guesswork.
Standard 1.5mm vs fat 1.8/2.0mm spring bars — when does it really matter?
On Rolex sport watches. A Submariner 116610 with a thicker leather strap needs the fat pin — 1.5mm would bend under the load. On a dress Datejust or an Omega Constellation the standard pin is fine. When in doubt, look at strap thickness: dressy leather under 4mm goes with the standard pin, sports straps over 4mm prefer the bigger pin.
My Rolex has drilled lugs — can I still use standard spring bars?
Yes, as long as lug width and diameter are right. Spring bars for drilled lugs aren't stronger — they're simply designed to be pushed from outside with a pointed tool, faster in the workshop. The standard spring bar works perfectly in the same housing.
Original Rolex or aftermarket Swiss Standard spring bars?
Original Rolex only come through the Rolex Service channel and are often hard to source. A good aftermarket Swiss Standard spring bar — hardened steel, proper dimensional tolerance — covers the same use. It's what I fit in the atelier on the straps I make for clients.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is designed for those who know that things done well take time. Your watch deserves exactly what it deserves.
Request an appointment →What we offer
- We guide you through every step — with exclusive images directly from our atelier
- Over 50 artisanal steps for each strap — from leather selection to final stitching
- The time it takes to do extraordinary things — four, five weeks. Not a day less.
- An object designed to last a lifetime — cared for by us for eighteen months
- The right leather for your watch — chosen together, in the atelier, only for you
By appointment only · Milan