Strap for Black Bay Fifty-Eight Stainless Steel / Burgundy / Bracelet

The Tudor Black Bay 58 M7939A1A0RU-0001 features a 20-millimetre lug width. This measurement is determined by the proportions between the 39mm case diameter and the integrated lugs. Always verify compatibility by measuring horizontally between the internal lug pins with a ruler, as millimetre tolerances significantly affect strap functionality and comfort.

Choice depends on intended use. For versatility: cognac or aged tobacco alligator. For vintage aesthetics and natural patina: vegetable-tanned calf. For water sports: vulcanised rubber or nato textile. A stainless-steel deployante ensures secure closure and precise circumference adjustment. All materials are available in the 20mm size compatible with your timepiece.

The Black Bay 58 uses standard 20mm lugs. Carefully lever the existing strap using a flat tool (spoon bar) in the lateral lug holes, extracting the pins. Align the new strap's holes with the pins, ensuring horizontal positioning. Verify the strap is neither too tight nor excessively loose laterally. If you encounter difficulties with compact dimensions, consult a professional watchmaker.

Any strap with a 20mm lug width is compatible with the Tudor Black Bay 58 M7939A1A0RU-0001. Milanostraps offers a specialised 20mm collection in alligator, vegetable-tanned calf, shell cordovan, nato and rubber. We recommend verifying total strap length (wrist width plus adjustment margin) to ensure optimal comfort and effortless adjustment with deployante or buckle.

Durability varies by material and usage intensity. Alligator or vegetable-tanned calf straps, with ordinary care, last 3–5 years of daily wear. Shell cordovan, being denser leather, can last 5–8 years. Vegetable tanning develops patina and minimal creasing—marks of authenticity. Humidity, salt exposure and frequency of strap rotation influence longevity. Casati Milano provides an 18-month warranty on all bespoke straps.