Tudor · 1926

Strap for Tudor 1926 91550

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter39 mm
Reference91550
Family1926
MovementTudor caliber T601 hours, minutes, seconds | date

Spring bar

Spring bars for Tudor

The right category for this model · choose the 21 mm size

Straps for the 1926 91550

Selected for the 21 mm lug width · workshop selection

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The 1926 91550, seen from the bench

The Tudor 1926 reference 91550 features a 39mm stainless steel case with 21mm lugs. It is powered by the Tudor T601 caliber with hour, minute, second and date functions. The stainless steel construction ensures durability and everyday wearability.

Frequently asked questions

What is the exact lug width of the Tudor 1926 91550?

The lug width of the Tudor 1926 91550 is 21 millimetres. This measurement corresponds to the distance between the case lugs, measured from end to end. It is essential to verify this measurement before purchasing an aftermarket strap, as even minor variations would cause constructive incompatibility.

Which strap material is most suitable for the Tudor 1926 91550?

For a dress watch like the 91550, alligator remains the canonical choice: its vertical grain and natural patina create a timeless accessory. Sophisticated alternatives include vegetable-tanned calf leather (faster patina development) and shell cordovan (superior longevity and natural sheen). Rubber or NATO straps are visually incongruous with the model's formal character.

How do I change the strap on my Tudor 1926 91550?

To change the strap, remove the spring bars by passing a dedicated tool (spring bar tool) under each lug, pushing until it disengages from its seat. Repeat on the second side. Insert the new spring bars into the strap, align them with the case slots, and push until they click into place. Ensure the bars are fully seated before wearing the watch.

Can I use an aftermarket (non-official Tudor) strap on my 91550?

Yes. Any strap with a 21mm lug width is constructively compatible. However, to ensure aesthetic coherence and durability, it is advisable to select certified quality leathers (alligator, calf, shell cordovan) and a deployante clasp that meets Tudor standards in terms of finishing and security.

How long does a leather strap last on a daily-wear dress watch like the Tudor 1926?

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) typically lasts 3–5 years with moderate daily wear. Durability depends on ambient humidity, cleaning frequency, and intensity of use. Annual replacement is advisable only in very humid climates or with intensive summer use. With proper care, the material ages with dignity.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only