Tudor · Black Bay
Strap for Heritage Black Bay Red Manufacture / Bracelet
Takes 22 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 79230R-0012 (aka: M79230R-0012, 79230R0012)
Selected for the 22 mm lug width · workshop selection
Hammered Pink Strap with Ecru Stitching€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Calfskin Strap Light Blue€98
Dark Brown Calfskin Military Strap€80
Black Saffiano Rubber Strap€105
The Black Bay 79230R-0012 (aka: M79230R-0012, 79230R0012), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Black Bay 79230R-0012?
The lug width of the Tudor Black Bay 79230R-0012 is 22 mm. This measurement represents the distance between the two lateral lugs on the case and is essential for strap compatibility. To verify, measure with a calliper the distance between the internal holes of the lugs: a 22 mm strap will fit precisely without the need for adapters or modifications.
Which strap is best suited for the Tudor Black Bay 79230R-0012?
The choice depends on your intended use. For a versatile and sophisticated option, vegetable-tanned leather (calf or alligator) develops natural patina over time. For sports durability and practicality, regenerated NATO fabrics dry rapidly and resist saltwater exposure. Vulcanised rubber straps are ideal for frequent diving or highly dynamic activities. All these materials are compatible with the 22 mm lug width.
How do you change the strap on the Tudor Black Bay 79230R-0012?
Strap replacement is straightforward and requires no specialist skills. Use a spring bar tool to push laterally on the pin that holds the strap on both sides of the case. The pin will slide partially out, allowing the old strap to slide away. Insert the new 22 mm strap by aligning the holes on the edges, then reposition the pin by pushing until you hear a click. Repeat on the opposite side.
Is an aftermarket strap compatible with the 79230R-0012?
Yes, provided it has a 22 mm lug width and quality materials. Artisanal straps crafted from vegetable-tanned leather, regenerated fabrics or vulcanised rubber maintain the case's waterproofing integrity and guarantee comfort and durability. Always verify that the strap is certified compatible and recommended for dive watches, especially if frequent underwater use is intended.
How long does a leather strap last on a watch like the 79230R-0012?
A quality leather strap made with vegetable tanning and structural stitching typically lasts 3-5 years of daily wear before showing significant signs of deterioration. Longevity depends on factors such as saltwater exposure (accelerates wear), regular maintenance (conditioning with natural oils) and how frequently you rotate alternative straps. An artisanal strap with an 18-month warranty represents a robust investment for durability and repairability.
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

