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

The lug width of the Tudor Black Bay One 79500-0009 is 19 mm. This measurement is critical when purchasing aftermarket straps: it is measured with a digital calliper as the distance between the two spring bar pins on the case. Any strap with a lug width different from 19 mm will not fit correctly and risks damaging the case.

The Tudor Black Bay One benefits from vegetable-tanned alligator or shell cordovan straps, which enhance the heritage character of the 36 mm case. For daily sporty wear, FKM rubber or anilina calf straps offer practicality without aesthetic compromise. The choice depends on the environment of use and the desired patina over time.

Strap replacement requires extraction of the lateral spring bar pins from the case, an operation demanding delicacy to avoid scratching the metal. The spring bars feature a compression mechanism: insert a flat tool (strap spring tool) beneath the pin, compress the internal spring, and extract the pin from its seat. It is recommended to entrust this operation to professionals at Tudor dealers or specialised ateliers.

Yes, aftermarket straps can be fitted to the Tudor Black Bay One 79500-0009, provided the lug width is exactly 19 mm. Straps of artisanal quality from specialised makers guarantee mechanical compatibility and durability over time. Milanostraps.it supplies 19 mm straps customisable in leather, size and stitching thread.

The durability of a leather strap depends on material and usage: alligator and shell cordovan support 4–6 years of daily wear; anilina calf 2–4 years. Leather undergoes fatigue from sweat, humidity and continuous flexing. Specialised ateliers such as Casati Milano provide warranties up to 18 months and recommend preventive maintenance with natural oils.