Strap for Heritage Black Bay 36 Stainless Steel / Blue / Strap

The Tudor Black Bay One 79500-0005 features a lug width of 19 millimetres. This measurement is determined by the overall width of the 36mm case and ensures optimal proportions between case and strap. It is important to note that 19mm is a specialist measure, not an industrial standard: not all manufacturers produce straps in this width, which is why it is advisable to rely on artisanal makers with proven competence in this intermediate range.

The Black Bay One responds exceptionally well to straps in wide-grain alligator (black or dark brown), vegetable-tanned calf, or shell cordovan. Alligator maintains the sober elegance of the case, vegetable-tanned calf offers visibly alive grain, whilst shell cordovan adds character through its fibrous structure and the patina it develops with use. For a more functional approach, NATO straps in canvas or butadiene rubber are valid alternatives that emphasise the instrumental vocation of the watch.

Changing the strap on the Black Bay One is a straightforward operation requiring a quality spring bar remover. Position the remover under the horizontal pin connecting the strap to the case, apply gentle pressure to release the internal spring, and slide the pin out of the lug. Repeat on the opposite side. Insert the new strap by threading the pin through the lug and ensuring the return spring is correctly positioned. A 19mm strap fits precisely into the lugs of the 79500-0005 without play.

Any strap manufactured with a 19-millimetre lug width is compatible with the Black Bay One 79500-0005. Artisanal makers such as Casati Milano or certified e-commerce specialist collections produce straps in this size with compatibility certification. It is essential to verify that the strap genuinely features 19mm width: a 20mm or 18mm lug will not fit correctly into the lugs.

The lifespan of a leather strap depends on tanning quality, usage, climate, and maintenance. A quality artisanal alligator or shell cordovan strap typically lasts 3-5 years of daily wear before showing significant signs of wear. Vegetable-tanned calf tends to wear slightly more quickly (2-4 years) owing to greater porosity, though it develops a characteristic patina more rapidly. The 18-month warranty offered by ateliers such as Casati Milano covers manufacturing defects, whilst natural wear is expected and part of the charm of genuine leather.