Tudor · Black Bay One
Strap for Black Bay 36 S&G - Diamond / Champagne - Diamond / Bracelet
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Black Bay One 79653-0004 (aka: M79653-0004), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Black Bay One M79653-0004?
The lug width of the Tudor Black Bay One M79653-0004 is precisely 19 millimetres, measured from inside to inside in the lateral grooves of the case. This dimension is specific to the 36mm model and is critical to ensure proper strap fitting without play or undesired movement.
What is the best strap for the Tudor Black Bay One 79653-0004?
There is no single answer—it depends on intended use and aesthetic preference. For formal or marine contexts, black alligator is timeless. For elegant daily wear, vegetable-tanned leather develops organic patina. For versatility, grey canvas NATO offers practicality. For saltwater exposure, butyl rubber is unmatched.
How do you change the strap on the Tudor Black Bay One 79653-0004?
Position the watch with the lugs facing upward. Use a spring bar tool to depress the retention spring inside the groove. Remove the old lug, insert the new one (ensuring it is 19mm) and release the spring. Repeat on the opposite side. The procedure requires care to avoid scratching the two-tone case.
Is an aftermarket strap compatible with the Tudor Black Bay One 79653-0004?
Yes, any strap with a 19-millimetre lug width is compatible. Artisanal-quality aftermarket straps in alligator, vegetable-tanned calf, or shell cordovan offer superior tactile properties, durability, and aesthetic ageing compared to standard factory straps.
How long does a natural leather strap last on the Tudor Black Bay One 79653-0004?
A quality natural leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts approximately 3–5 years with daily use, conditioned by frequency of wear, sun exposure, and humidity. Vegetable-tanned leather ages predictably and retains functionality beyond its aesthetic lifespan. Regular neutral-oil treatments extend longevity.
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
