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

The Tudor Black Bay One 79500-0001 features a lug width of 19 millimetres, a construction specification now uncommon in modern wristwatches. This dimension represents the vintage standard that Tudor has deliberately retained for this model, distinguishing it from the vast majority of contemporary aftermarket straps, which are predominantly manufactured in 20 millimetres. Measuring the lug width involves verifying the internal distance between the shoulders of the tube connecting the case to both lugs.

Four options are recommended for the 79500-0001: alligator for formal versatility spanning day and evening wear, vegetable-tanned calf for those appreciating natural ageing and patina development over time, shell cordovan for superior durability and intrinsic lustre, and natural FKM rubber to preserve the sports and diving heritage of the piece. Each selection communicates distinctly with the brushed stainless steel case design and unidirectional rotating bezel.

Strap replacement on the 79500-0001 requires a specialised tool called a spring bar tool, which permits compression of the small springs within the tubes connecting the lug width and the case lugs. Position the watch on a soft surface, insert the tool into the access hole of the metal tube, compress the spring until shortened, then extract the old strap. Repeat the operation in reverse with the new strap. To mitigate risk of case damage, professional services perform this operation within minutes at authorised service centres.

Aftermarket straps are compatible with the 79500-0001 provided their lug width measures precisely 19 millimetres. The vast majority of commercially available straps are manufactured in 20 millimetres, 18 millimetres, or other standard dimensions, creating significant sourcing difficulty. Specialised suppliers producing bespoke straps for this specific width are therefore essential; MilanoStraps, for example, offers 19mm-compatible straps available for immediate dispatch or custom personalised production.

A natural leather strap of quality, properly maintained on a daily-wear timepiece such as the 79500-0001, exhibits average durability of 3-5 years before replacement becomes necessary. This estimate varies according to leather selection: alligator and shell cordovan, owing to their dense fibrous structure, tend towards 5-7 years, whilst standard calf leather approaches 3-4 years. Exposure to humidity, perspiration, and thermal fluctuations accelerates the ageing process. Periodic application of specific balms and storage in climatically stable environments substantially extend the strap's useful lifespan.