Tudor · Classic
Strap for Classic 38 Stainless Steel / Yellow Gold / Fluted / Champagne-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 21013-0010 (aka: M21013-0010)
Selected for the 20 mm lug width · workshop selection
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Red Suede Strap with Stitching — Milano Straps€90
Dark Brown Calfskin Military Strap€80
The Classic 21013-0010 (aka: M21013-0010), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Classic 21013-0010?
The lug width of the Tudor Classic 21013-0010 is 20mm. This measurement is crucial for selecting a compatible strap, as it corresponds to the distance between the case lugs. Always verify that your replacement strap has exactly 20mm lug width to ensure a secure and proportionate fit with the 38mm case diameter.
Which strap is most suitable for the Tudor Classic 21013-0010?
For the Tudor Classic 21013-0010, we recommend alligator in cognac or dark brown tones for formal occasions, which complements the yellow gold case. Black polished calfskin creates elegant contrast, whilst natural off-white vegetable-tanned leather evokes vintage Tudor straps. For daily wear, grey NATO or durable calfskin represent practical choices without aesthetic compromise.
How do I change the strap on a Tudor Classic 21013-0010?
To change the strap on your Tudor Classic 21013-0010, you'll need basic tools: a spring bar tool or small hexagonal key. Position the watch on a soft cloth, locate the spring bar pins at 12 and 6 o'clock positions, insert the tool into the groove and push downward to release the pin. Once freed, remove the old strap and align the new 20mm strap with the lugs, then carefully push the pin back until it seats. Work deliberately to avoid damaging the lugs.
Can I fit an aftermarket 20mm strap on this Tudor?
Yes, any quality 20mm strap is compatible with the Tudor Classic 21013-0010, provided the spring bars match the case type (elastic or fixed). We recommend full-grain leather straps of 3-4mm thickness to maintain balanced proportions relative to the 38mm case. Avoid excessively thin or soft materials that may shift against the lugs.
How long does a leather strap last on the Tudor Classic 21013-0010?
A full-grain leather strap (alligator, calfskin, vegetable-tanned) on the Tudor Classic 21013-0010 typically lasts 3-5 years with daily wear, depending on leather quality and type. Alligator generally outlasts softer calfskin. Sweat, humidity and sunlight exposure accelerate deterioration. Regular maintenance with natural balms prolongs lifespan; changing the strap is an opportunity to refresh the watch's aesthetic entirely.
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
