Tudor · Black Bay 58
Strap for Black Bay Fifty-Eight Stainless Steel / Black / Fabric
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Black Bay 58 79030N-0003 (aka: 79030N0003, BB58, Black Bay 58, M79030N-0003)
Selected for the 20 mm lug width · workshop selection
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Red Suede Strap with Stitching — Milano Straps€90
Dark Brown Calfskin Military Strap€80
The Black Bay 58 79030N-0003 (aka: 79030N0003, BB58, Black Bay 58, M79030N-0003), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Black Bay 58 79030N-0003?
The Tudor Black Bay 58 (reference 79030N-0003) features a lug width of 20 millimetres. This dimension is standard across all units produced and corresponds to the internal space between the case lugs. When purchasing a strap, ensure it is specifically sized for 20mm lug width to guarantee a precise fit without lateral play or mechanical resistance.
Which strap should I choose for the Tudor Black Bay 58 79030N-0003?
For the Black Bay 58, we recommend materials that reflect the model's instrumental philosophy: alligator for scalene texture and regularity, shell cordovan for deep patina and visible ageing, or vegetable-tanned leather for more casual options. The choice depends on daily use and desired aesthetic tone. We advise against NATO straps on this model, as the 39mm proportion deserves the structural integrity of a single-pass strap.
How do I change the strap on my Tudor Black Bay 58?
The Black Bay 58 is equipped with a screw-down crown positioned at three o'clock, facilitating quick strap changes. No specialised tools are required: remove the old strap by applying gentle pressure to the spring bars, then insert the new 20mm strap ensuring the pins fully enter the attachment slots. The procedure takes seconds and is accessible even for those without experience.
Is an aftermarket 20mm strap compatible with the Tudor Black Bay 58?
Yes, any strap with a 20mm lug width is compatible with the 79030N-0003. The handcrafted straps available online from milanostraps.it are specifically sized for this width and guarantee precise fit, material quality, and full customisation (measurements, initials, stitching thread). The construction quality of the Tudor case merits straps manufactured to equivalent artisanal standards.
How long does a leather strap last on the Tudor Black Bay 58?
Durability depends on material and usage: a high-quality alligator or shell cordovan strap with vegetable tanning resists 3-5 years of daily use, developing a visible patina and history over time. Vegetable-tanned calf leather offers similar durability but ages with softer tonalities. The 18-month warranty from Casati Milano covers manufacturing defects; natural wear is part of the charm of handcrafted leather. Regular maintenance (gentle brushing, protection from excessive moisture) extends the strap's lifespan.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
