Tudor · Black Bay
Strap for Heritage Black Bay Blue 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 79230B-0001
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 79230B-0001, seen from the bench
Frequently asked questions
What is the lug width of the Tudor Black Bay 79230B-0001?
The Tudor Black Bay 79230B-0001 features 22-millimetre lugs, measured between the inner shoulders. This dimension is standard for the 41mm case and is fully compatible with aftermarket straps constructed for the 22mm lug width specification. Verify compatibility with a digital calliper before purchasing a replacement strap.
What is the best strap for the Tudor Black Bay 79230B-0001?
Selection depends on intended use. For classical aesthetics choose alligator in cognac or vegetable-tanned calf in black. For frequent marine immersion, FKM rubber guarantees complete water resistance. For tactical daily practicality, recycled NATO fabrics offer durability without maintenance. Milano Straps provides curated selections for each Black Bay usage profile.
How do I change the strap on the Tudor Black Bay 79230B-0001?
Use a spring bar tool to disengage the springs located at the inner extremities of the lugs. Insert the tool into the small lateral slot and push inward to release one spring, remove the old strap, then insert the new one by aligning the lug holes. Verify both springs snap into position. The operation requires 2-3 minutes without specialist tools.
Are aftermarket straps truly compatible with this model?
Yes, fully compatible. Any strap constructed for 22mm lug width pairs perfectly with the 79230B-0001 lugs without modifications. Milano Straps offers a complete collection of 22mm straps tested on diver and sports profiles identical to yours. Compatibility guarantee is certified by our Casati Milano atelier.
How long does a leather strap last on a wristwatch?
The lifespan of a natural leather strap ranges from 2 to 5 years depending on frequency of use, perspiration exposure and maintenance. Vegetable tanning ages with visible patina but remains functional 3-4 years. Alligator, more resilient, reaches 4-6 years. FKM rubber does not deteriorate and lasts 7+ years. Milan Straps leather straps achieve 5+ years of functionality with minimal care.
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

