Tudor · Classic
Strap for Classic 38 Stainless Steel / Diamond / Blue / 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 21020-0009 (aka: M21020-0009)
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
Frequently asked questions
What is the lug width of the Tudor Classic 21020-0009?
The lug width of the Tudor Classic 21020-0009 is 20 millimetres. This is the distance between the two attachment pins where the strap is inserted. Accurate measurement is essential to avoid incompatibility: position a calliper between the internal points of both attachments for a precise reading.
Which strap is most suitable for the Tudor Classic 21020-0009?
The ideal strap depends on usage and personal preference. For formal contexts, black alligator or dark brown calf are aristocratic choices. For daily versatility, vegetable-tanned calf with evolving patina is excellent. For contemporary practicality, NATO or FKM rubber straps maintain the 21020-0009's classical elegance without functional compromise.
How do I change the strap on the Tudor Classic 21020-0009?
Remove the watch from your wrist and locate the two horizontal attachment pins at the sides of the case. Use a spring bar tool to gently push the pin inward, creating sufficient space to extract the worn strap. Insert the new 20mm strap by aligning the lateral holes with the pins, then release the tool allowing the pin to return to position. Verify the strap is securely fastened.
Can I use an aftermarket compatible strap on the Tudor Classic 21020-0009?
Yes, provided the strap is dimensioned at 20 millimetres lug width. Artisanal straps of superior quality, crafted from alligator, shell cordovan or vegetable-tanned calf, pair perfectly with the 21020-0009's classical design, often surpassing OEM offerings in material and craftsmanship. Always verify compatibility specifications before purchase.
What is the lifespan of a leather strap on the Tudor Classic 21020-0009?
Lifespan depends on the leather type, usage and maintenance. Quality artisanal vegetable-tanned calf resists 3-5 years with daily use, developing fascinating patina. Alligator and shell cordovan offer superior longevity, 5-8 years, due to natural fibre density. FKM rubber lasts 4-6 years. Periodic cleaning with damp cloth and occasional conditioning treatments substantially extend useful life.
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
