Tudor · Royal

Strap for Royal Date 34 Stainless Steel / Yellow Gold / Chocolate - Roman

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter34 mm
Reference28403-0008 (aka: M28403-0008)
FamilyRoyal
MovementTudor caliber T601 Hours, Minutes, Seconds | Date
CaseYellow Gold, Stainless Steel

Recommended spring bar

Modern Tudor 22mm spring bars — factory specification

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Tudor spring barsOpen →

Straps for the Royal 28403-0008 (aka: M28403-0008)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Royal 28403-0008 (aka: M28403-0008), seen from the bench

The Tudor Royal 28403-0008 is a 34mm stainless steel and yellow gold watch from the Royal collection, equipped with the T601 caliber movement featuring hours, minutes, seconds, and date window. The case combines yellow gold and stainless steel in a two-tone configuration, with a 22mm lug width that requires specific straps. This balanced proportion reflects 1960s design philosophy, offering refined sportiness and formal elegance in a size suited to various wrist sizes.

Frequently asked questions

What is the lug width of the Tudor Royal 28403-0008?

The Tudor Royal 28403-0008 features a lug width of 22mm. This measurement is specific to this model and not interchangeable with common standards such as 20mm or 24mm. To verify it, use a calliper to measure the distance between the inner edges of the watch's lugs.

Which strap is most suitable for the Tudor Royal 28403-0008?

For the Royal 28403-0008, we recommend straps in alligator or shell cordovan with vegetable tanning, which emphasise the model's classical-sporting character and develop a patina over time consistent with the bi-colour gold/steel case. Dark brown calf leather remains the most versatile choice for daily wear.

How do I change the strap on my Tudor Royal 28403-0008?

Strap changing requires a spring bar tool. Position the tool's tip in the lug hole to compress the internal spring bar, then slide the strap out of the lug. Repeat for the other side. Insert the new strap by aligning its lug holes to the lugs and release the spring bar. If in doubt, consult a watchmaker.

Can I fit an aftermarket strap to a Tudor Royal 28403-0008?

Yes, provided the strap has a 22mm lug width and suitable lugs. Avoid straps with adjustable or variable lugs, which compromise stability. High-quality artisanal 22mm straps guarantee complete compatibility and allow aesthetic customisations impossible with factory straps.

How long does a leather strap last on a Tudor Royal 28403-0008?

A vegetable-tanned leather strap lasts 3-5 years with daily wear, developing an aesthetic patina over time. Lifespan depends on usage intensity, climatic conditions and maintenance. Noble leathers such as shell cordovan can last 7-10 years. Replacement is straightforward and recommended when the leather shows significant wear at the edges or main body.

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