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

The lug width of the Tudor Black Bay One 79500-0002 is 19 millimetres. This measurement represents the distance between the two lugs on the case where the strap is attached via spring bars. It is a specific dimension of this model that requires compatible 19mm straps to ensure correct fit.

The choice depends on intended use. A natural alligator or full-grain calf is ideal for a balance between elegance and sportiness. A NATO strap in cotton or silk is perfect for daily wear and chromatic versatility. An FKM rubber strap is the most practical solution for marine use and humid climates. For maximum elegance, shell cordovan in burgundy or black represents the pinnacle, though it typically requires custom crafting given its rarity in 19mm width.

The strap is changed by removing the spring bars that connect it to the case lugs. Using a dedicated tool or spring bar tool, gently push the pin to release the internal spring, allowing extraction of the old strap. Proceed in reverse order when installing a new strap, ensuring the spring bar clicks into place correctly. If you are unfamiliar with the process, it is advisable to consult a professional watchmaker to avoid damage to the lugs.

Yes, any quality strap with a 19mm lug width is compatible with the 79500-0002. This includes straps in alligator, calf, shell cordovan, NATO, rubber and other materials, provided the width is correct. It is important to purchase from reputable suppliers that guarantee precise metric tolerances and conscientious craftsmanship. Low-quality straps may present discrepancies in width, compromising fit.

The lifespan of a natural leather strap depends on the material, tanning method and use. A quality alligator strap, with vegetable tanning, has an average life of 5–7 years with regular use and proper maintenance (periodic cleaning, drying after moisture, avoiding prolonged sun exposure). Full-grain calf has a similar lifespan. Shell cordovan, due to its density and hardness, can last 10–15 years. An FKM rubber strap lasts 5–6 years before losing elasticity. The patina that develops over time is a desirable characteristic, a sign of authentic leather ageing with dignity.