Tudor · Classic

Strap for Classic 38 Stainless Steel / Yellow Gold / Diamond / Champagne-Diamond / 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
Reference21023-0010 (aka: M21023-0010)
FamilyClassic
MovementETA caliber 2824-2 hours, minutes, seconds | date
Year2008
CaseYellow Gold, Stainless Steel

Spring bar

Spring bars for Tudor

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

Straps for the Classic 21023-0010 (aka: M21023-0010)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Classic 21023-0010 (aka: M21023-0010), seen from the bench

The Tudor Classic reference 21023-0010 is equipped with the automatic ETA 2824-2 caliber with indication of hours, minutes, seconds and date. The movement offers a power reserve of approximately 38 hours with a frequency of 28,800 vibrations per hour. The construction follows the standard technical parameters of the Tudor Classic collection with a screw-down crown for water resistance.

Frequently asked questions

What is the lug width of the Tudor Classic 21023-0010?

The lug width of the Tudor Classic 21023-0010 is exactly 20 millimetres. This specific measurement has been engineered by Tudor to maintain perfect visual balance between the lugs and the 38-millimetre case diameter. To verify compatibility with aftermarket straps, measure the internal space between the lug pins: it must be precisely 20 millimetres.

Which strap is best suited for the Tudor Classic 21023-0010?

The ideal strap depends on your intended use: dark brown alligator elevates the formal aspect of the two-tone case; vegetable-tanned calf in cognac offers daily versatility and natural patina development; burgundy shell cordovan maintains elegance with enhanced durability; black rubber strap with steel deployante adds practicality for sports-oriented wear. milanostraps.it offers all these options in 20mm, fully customisable.

How do I change the strap on my Tudor Classic 21023-0010?

Strap replacement is accomplished via the spring bars. Using a dedicated spring bar tool, gently compress the bar to disengage it from the lug slot. Remove the old strap and align the new 20mm strap with the lug apertures. Ensure the spring bars engage without play or friction. For absolute precision, Casati Milano provides installation service with spring bar tension verification.

Can I use aftermarket straps on my Tudor Classic?

Yes, all 20mm straps are compatible with the Tudor Classic 21023-0010. High-quality artisanal aftermarket straps (such as those from milanostraps.it) maintain the same construction rigour as original Tudor straps. Always verify the lug width is exactly 20 millimetres and that spring bars are solid stainless steel to prevent oxidation.

How long does a natural leather strap last on a Tudor Classic 21023-0010?

A natural leather strap (alligator, calf, shell cordovan) under daily use typically remains aesthetically acceptable for 3 to 5 years before replacement becomes advisable for appearance. Actual durability depends on tannage method, frequency of wear, and climate exposure. With regular maintenance (gentle cleaning and annual conditioning), many owners maintain the same straps for 7 to 10 years. Casati Milano provides an 18-month warranty on all artisanal straps.

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