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 width22 mm
Case diameter41 mm
Reference79230R-0001
FamilyBlack Bay
MovementTudor caliber MT5602 Hours, Minutes, Seconds | Chronometer
CaseStainless Steel

Recommended spring bar

Modern Tudor 22mm spring bars — factory specification

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Tudor spring barsOpen →

Straps for the Black Bay 79230R-0001

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Black Bay 79230R-0001, seen from the bench

The Black Bay represents Tudor's dive watch line, equipped with the automatic caliber MT5602 certified chronometer. The movement offers hours, minutes and seconds functions with extended power reserve. The watch features 22mm lugs and robust construction for underwater use.

Frequently asked questions

What is the exact lug width of the Tudor Black Bay 79230R-0001?

The lug width of the Tudor Black Bay 79230R-0001 is 22mm. This measurement represents the distance between the horizontal attachment lugs on the case. Any strap specified for 22mm will install without mechanical adaptation. To verify compatibility, measure the space between the lugs with a ruler or calliper.

Which type of strap is most suitable for the Tudor Black Bay 79230R-0001?

We recommend alligator or vegetable-tanned calf leather straps for the Black Bay 79230R-0001. Alligator offers elevated aesthetics and graceful ageing; calf leather ensures breathability and extended wearing comfort. Avoid NATO or rubber models—they would diminish the stainless steel case's build quality. For saltwater environments, FKM rubber is the functional choice.

How do you change the strap on a Tudor Black Bay 79230R-0001?

Follow these steps: 1) Flip the watch over and locate the attachment lugs; 2) Use a spring bar tool (or small flathead screwdriver) to compress the internal spring of the lug; 3) Extract the lug from the case; 4) Repeat on the opposite side; 5) Insert the new strap and reinsert the lugs until you feel the retention click. This takes approximately 10 minutes and requires no technical expertise.

Are aftermarket straps compatible with the Tudor Black Bay 79230R-0001?

Yes, any strap with a 22mm lug width is compatible. Verify that the spring bars are the same length (typically 15–16mm). Artisanal leather straps often exceed the build quality of original straps in terms of hide selection and stitching precision. Ensure the width is precisely 22mm for a perfect fit.

How long does a leather strap last on a watch like the Tudor Black Bay 79230R-0001?

A quality leather strap—alligator, vegetable-tanned calf, or shell cordovan—typically lasts 3–5 years with continuous daily wear. Longevity depends on climate, wearing frequency, and maintenance. Leather benefits from periodic care with light vegetable oils. After wear, strap replacement is economical and allows you to redefine the watch's aesthetic.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only