Tudor · 1926

Strap for 1926 39 Stainless Steel / Black - Diamond

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
Reference91550-0004 (aka: M91550-0004)
Family1926
MovementTudor caliber T601 hours, minutes, seconds | date
Year2018
CaseStainless Steel

Spring bar

Spring bars for Tudor

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

Straps for the 1926 91550-0004 (aka: M91550-0004)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The 1926 91550-0004 (aka: M91550-0004), seen from the bench

The Tudor 1926 (M91550-0004) is a 39mm stainless steel watch with manual-winding caliber T601 and black dial without date complication. The lug-to-lug distance is 21mm, characteristic of this model family. The watch embodies minimalist design philosophy with brushed steel case finished by polished details, anti-reflective sapphire crystal, and 100m water resistance. The T601 caliber features 43 jewels and over three days power reserve, designed without unnecessary complexity.

Frequently asked questions

What is the lug width of the Tudor 1926 91550-0004?

The Tudor 1926 91550-0004 features a lug width of 21.00 millimetres, measured internally between the two shoulders of the upper lugs. This dimension is specific to this family and permits no approximation: a 20mm strap would be too tight, whilst a 22mm would generate unwanted mechanical play.

What is the best strap for the Tudor 1926?

For the Tudor 1926 91550-0004, Mississippi alligator represents the formal choice par excellence: the natural geometric texture creates aesthetic continuity with the brushed lugs, and the patina develops progressively into a visual memory of wear. Alternatively, vegetable-tanned calf offers aesthetic sustainability and progressive colour warmth, whilst shell cordovan guarantees density and luminosity for extreme formal contexts.

How do I change the strap on my Tudor 1926?

The procedure requires a spring bar removal tool of modest calibre. Position the tool beneath the hinge pin, apply gentle upward pressure to release the internal spring, extract the worn strap. Reverse the procedure for installation of the new strap, ensuring both pins are fully seated and the spring is loaded. If you lack the tool, a professional watchmaker will complete the operation in minutes.

Is an aftermarket strap compatible with the Tudor 1926 91550-0004?

Yes, provided the lug width is precisely 21.00 millimetres. Quality aftermarket straps, manufactured in alligator, calf, or technical rubber with correct constructive tolerances, are entirely compatible. Models available online at milanostraps.it offer both standard versions and customisation options (tailored measurements, initials, stitching thread selection) to accommodate individual preferences.

How long does a leather strap last on the Tudor 1926?

Durability depends on material and intensity of wear. A quality artisanal alligator strap, with ordinary maintenance (occasional cleaning, protection from excessive humidity), readily achieves 5-7 years. Vegetable-tanned calf, more sensitive to moisture, maintains structural integrity for 4-6 years. Shell cordovan, if properly protected, may exceed 10 years. Vulcanised rubber offers superior durability (10-15 years) but permits less aesthetic personalisation.

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