Tudor · Classic
Strap for Classic 38 Stainless Steel / Diamond / White-Diamond / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Classic 21020-0001 (aka: M21020-0001)
Selected for the 20 mm lug width · workshop selection
Vintage Black Calfskin Leather Strap€80
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Vintage Olive Green Calf Leather Watch Strap€80
Hammered Black Calfskin Strap — Ecru Stitching€98
The Classic 21020-0001 (aka: M21020-0001), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Classic 21020-0001?
The lug width (also called lug size or strap width) of the Tudor Classic 21020-0001 is 20 millimetres. This is the critical measurement when selecting a compatible strap. Measure the distance between the two lugs from inner wall to inner wall to verify proper compatibility.
Which strap is best suited for the Tudor Classic 21020-0001?
For the Tudor Classic 21020-0001, we recommend quality alligator straps for formal contexts, naturally-tanned calf leather for daily versatility, or premium rubber for dynamic use. The choice depends on your dial colour (blue, black, or grey) and desired chromatic pairing. Shell cordovan represents the premium choice for discerning collectors.
How do you change the strap on a Tudor watch?
To change the strap, remove the spring bars using a dedicated spring bar tool or consult a professional. Insert one end of the tool under the spring bar groove, release the spring mechanism, and remove the old strap. Insert the new spring bar and ensure it is correctly positioned before securing the fresh strap.
Is an aftermarket strap compatible with the Tudor Classic 21020-0001?
Yes, any strap with a 20mm lug width is compatible with the Tudor Classic 21020-0001. Quality aftermarket straps offer extensive choice in materials, colours, and finishes. Always verify that spring bars are the correct length and fashioned from stainless steel to ensure longevity and reliability.
How long does a leather strap last on the Tudor Classic?
A quality leather strap typically lasts 3–5 years with daily wear, depending on maintenance and climate exposure. Premium leathers such as alligator and shell cordovan endure longer due to their dense fibre structure. Regular maintenance—cleaning and conditioning—and rotating your strap extends its lifespan considerably. Casati Milano straps are backed by an 18-month guarantee.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
