Strap for Style 38 Stainless Steel / Black-Diamond / Strap

The Tudor Style 12500-0008 features a lug width of 20 millimetres. This dimension is critical for strap compatibility and must be respected to ensure proper fitting to the case lugs. You can verify the measurement using a digital calliper to measure the distance between the inner lug holes, or by consulting the official technical specifications provided by Tudor.

For a dress watch such as the Style 12500-0008, alligator leather represents the most eloquent choice: it offers a refined natural grain and a patina that improves with time. Napped calf is a versatile and contemporary alternative, available in bold colourways. For informal wear or warm seasons, NATO fabric and FKM rubber ensure practicality whilst maintaining aesthetic coherence. Vegetable-tanned leather offers an artisanal option, though it requires consistent maintenance.

The procedure requires a spring bar removal tool: position the watch on a stable surface, locate the small button or spring within the lug area, press gently downward, and slide the metal bar out of the case lugs. Repeat on the other side. To install the new strap, insert the lug ends into the case lugs and press until you hear the click of closure. If you are uncertain, consult an authorised service centre.

Yes, the 20mm lug width is an established standard in watchmaking. Milanostraps offers an exclusive collection of artisanal 20mm straps: alligator, napped calf, FKM rubber and NATO fabric, all customisable in length, initials and stitching type. Casati Milano atelier additionally offers bespoke commissions with personal leather selection and an 18-month warranty.

Longevity depends on material and frequency of use. Quality alligator, with periodic maintenance (cleaning and conditioning every 6–8 months), typically lasts 3–5 years of daily wear. Napped calf tends to deteriorate more quickly with continuous exposure to moisture and perspiration, with an average lifespan of 2–3 years. FKM rubber, being more resistant to atmospheric agents, can last 4–6 years. Vegetable-tanned leather, whilst more aesthetically compelling, is the most delicate and requires consistent maintenance to extend longevity beyond 2–3 years.