Strap for Classic 38 Stainless Steel / Yellow Gold / Diamond / Champagne / Bracelet

The Tudor Classic 21023-0009 has a lug width of 20 millimetres. This dimension is standard for this model and must be measured from the inside of one lug to the inside of the other lug at the deepest point, using a calliper or measuring tape. Always verify this measurement before purchasing an aftermarket strap to ensure correct compatibility.

The best strap depends on your intended use. For formal occasions: vegetable-tanned alligator in dark brown or shell cordovan with a gold clasp. For daily wear: smooth calf in cognac or grey tones. For casual-sport use: cotton NATO or structured rubber strap. All must be 20mm wide for the lugs.

Remove the old strap by gently pushing the spring bar (metal pin) downward from the lugs using a springbar tool. Once extracted, thread the spring bar through the new strap and reinsert it into the lugs, ensuring it clicks securely. Do not force: the movement should be smooth. If the strap has a deployment clasp, verify it is correctly engaged before closing.

Yes, any aftermarket strap with a 20mm lug width is compatible. Milanostraps offers handcrafted 20mm straps customisable in leather, colour, initials and stitching type. The Casati Milano atelier also creates bespoke straps with direct leather selection and an 18-month warranty.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3–5 years with moderate daily wear, up to 7–10 years with occasional use. Longevity depends on: frequency of wear, tanning method, ambient humidity and maintenance. A vegetable-tanned strap develops a natural patina that becomes even more valuable over time. Periodic care (cleaning, conditioning) significantly extends durability.