Tudor · Royal

Strap for Royal Date 34 Stainless Steel / Blue - Roman

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter34 mm
Reference28400-0006 (aka: M28400-0006)
FamilyRoyal
MovementTudor caliber T601 hours, minutes, seconds | date
Year2020
CaseStainless Steel

Spring bar

Spring bars for Tudor

The right category for this model · choose the 20 mm size

Straps for the Royal 28400-0006 (aka: M28400-0006)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Royal 28400-0006 (aka: M28400-0006), seen from the bench

The Tudor Royal reference 28400-0006 is equipped with the automatic caliber T601 with functions of hours, minutes, seconds and date. The movement offers a power reserve and date display. The case has classic proportions with a screw-down crown according to Tudor standards.

Frequently asked questions

What is the exact lug width of the Tudor Royal 28400-0006?

The lug width of the Tudor Royal 28400-0006 is 20mm, measured between the centres of the case lugs. This dimension is specific and allows the use of straps compatible with the same millimetre tolerance.

Which strap pairs best with the Tudor Royal 28400-0006?

Alligator in vegetable tanning grey and smooth Bordeaux calf leather represent the most refined choices. For summer use, NATO fabric straps in navy blue provide practicality whilst maintaining elegance. The choice depends on the occasion and the character you wish to impart to the watch.

How do I change the strap on my Tudor Royal 28400-0006?

Use a spring bar tool to extract the pins from the case lugs. Position the small hook of the tool under the pin, push gently upwards and the pin will release. Repeat on the other side, then insert the pins into the new strap by aligning the holes and pressing until the attachment clicks.

Can I use an aftermarket strap on this model?

Yes, provided the strap respects the 20mm lug width. High-quality artisanal straps guarantee Swiss tolerances and perfect fitting. Avoid generic straps as they may slip laterally or fail to insert correctly.

How long does a leather strap last on my watch?

A high-quality leather strap, such as alligator or shell cordovan, typically lasts 3-5 years with regular maintenance. Durability depends on frequency of use, humidity and care. Periodically, nourish the leather with oils specific to watchmaking to maintain elasticity and slow ageing.

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