Tudor · Classic

Strap for Classic 38 Stainless Steel / Fluted / Silver / Bracelet

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

Lug width20 mm
Case diameter38 mm
Reference21010-0004 (aka: M21010-0004)
FamilyClassic
MovementETA caliber 2824-2 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Spring bars for Tudor

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

Straps for the Classic 21010-0004 (aka: M21010-0004)

Selected for the 20 mm lug width · workshop selection

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The Classic 21010-0004 (aka: M21010-0004), seen from the bench

The Tudor Classic 21010-0004 is a 38mm stainless steel watch representing a modern reinterpretation of Tudor's Classic collection. It features an ETA caliber 2824-2 movement with hours, minutes, seconds, and date display. The lug width is 20mm, essential for aftermarket strap selection. With its satin-finished steel case and sober dial design, this model embodies Tudor's philosophy of elegant simplicity rooted in 1960s-70s watchmaking principles.

Frequently asked questions

What is the lug width of the Tudor Classic 21010-0004?

The lug width of the Tudor Classic 21010-0004 is 20mm. This dimension is critical for aftermarket strap compatibility and must be measured precisely between the inner lugs of the case.

Which strap pairs best with the Tudor Classic 21010-0004?

An alligator with vegetable tanning or calf leather with natural patina represent the most elegant choices. For casual wear, a monochromatic cotton NATO works equally well. The key is maintaining a restrained colour palette and formal simplicity.

How do I change the strap on the Tudor Classic 21010-0004?

The strap is replaced using the spring bars located at the ends of the lugs. Using a dedicated spring bar tool, gently press the bar to release the internal spring, extract the old strap, and insert the new one, ensuring the spring bars are correctly positioned.

Can I use an aftermarket strap compatible with the Tudor Classic 21010-0004?

Yes, any strap with a 20mm lug width is compatible. Artisanal straps offer greater personalisation than OEM products. Ensure the lug width is precisely 20mm and that the strap shoulder aligns correctly with the case.

How long does a leather strap last on a daily-worn Tudor Classic?

A quality leather strap, with vegetable tanning or alligator, typically lasts 3-5 years with daily wear. Longevity depends on humidity conditions, maintenance (regular cleaning), and water exposure. A well-maintained artisanal strap can significantly exceed this duration.

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