Strap for Black Bay 41 Stainless Steel / Blue - Diamond / Bracelet

The lug width of the Tudor Black Bay One 79680-0005 is precisely 22mm. This width is the standard specification for the model and ensures correct fitment without lateral play. To verify compatibility with your strap, measure between the inner left and inner right edges of the steel attachment lugs on the case.

For the Black Bay One 79680-0005 we recommend dark brown or black alligator for dramatic contrast with the dial, or vegetable-tanned calf in honey or cognac tones for a more cohesive aesthetic. Black rubber is optimal for actual diving use, whilst slate-grey NATO fabric adds casual versatility. All straps must be exactly 22mm in lug width.

Strap replacement is accomplished through spring bars on the lugs. Use a dedicated strap-removal tool to compress the inner bar pin and slide it from its seat. Insert the new strap by aligning its ends to the lugs, then reseat the spring bars securely. Ensure your new strap is precisely 22mm lug width to avoid unwanted play.

Using a quality aftermarket strap does not invalidate Tudor's warranty on case and movement, as the strap itself falls outside the original coverage. However, we recommend straps of identical thickness (4mm) and lug width (22mm) to preserve structural integrity. Our artisanal straps guarantee both technical and aesthetic compatibility.

A quality leather strap—alligator vegetable-tanned or calf—typically lasts 2–3 years with moderate daily wear, extending to 4–5 years with occasional use. Durability depends on climate (humidity accelerates ageing), frequency of wear, and maintenance. Avoid prolonged immersion in fresh or salt water unless using rubber. Casati Milano straps include an 18-month guarantee against manufacturing defects.