Tudor · Black Bay

Strap for Heritage Black Bay Black Manufacture / Fabric

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
Reference79230N-0005 (aka: M79230N-0005, 79230N0005)
FamilyBlack Bay
MovementTudor caliber MT5602 hours, minutes, seconds | chronometer
Year2016
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 79230N-0005 (aka: M79230N-0005, 79230N0005)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

Frequently asked questions

What is the exact lug width of the Tudor Black Bay 79230N-0005?

The lug width of the Tudor Black Bay 79230N-0005 is precisely 22 millimetres. This dimension specifies the gap between the lateral attachment points of the case and determines strap compatibility. To verify, measure horizontally with a calliper the distance between the two spring bars protruding from the case sides at dial height.

What is the best strap for the Tudor Black Bay 79230N-0005?

There is no universal answer, as it depends on intended use and aesthetic preference. Vegetable-tanned alligator emphasises understated elegance and develops a compelling patina with time. Shell cordovan offers visual solidity with its distinctly tight grain. A premium NATO strap ensures versatility and daily practicality, aligning perfectly with the model's military heritage. Vulcanised rubber is the ideal choice for marine environments or intensive perspiration exposure.

How do you change the strap on a Tudor Black Bay 79230N-0005?

The strap attaches to the case lugs via removable spring bars. Obtain a spring bar tool (available from professional watchmakers or specialist e-commerce platforms). Insert the flat end into one side of the lug, gently compress the internal spring until the pin releases, then extract it. Repeat for the opposite side. Position the new strap onto the lugs, then reinsert the bars, compressing the spring until you hear an audible click. Never force: gentleness preserves both strap and case.

Is a 22mm aftermarket strap compatible with the Tudor Black Bay 79230N-0005?

Yes, any strap designed for a 22mm lug width is formally compatible. However, technical compatibility does not automatically guarantee aesthetic harmony: verify that the attachment type (straight lug, curved lug, removable spring bars) matches your case geometry. Milano Straps straps are crafted bespoke and tested on this Tudor reference, ensuring constructive adherence and flawless finishing.

How long does an authentic leather strap last on a wristwatch?

A leather strap's lifespan varies according to tannery quality, frequency of wear, exposure to sunlight, water and perspiration, and maintenance habits. Premium vegetable-tanned alligator typically lasts 3–5 years of daily use, developing a captivating patina. Shell cordovan, owing to its density, readily reaches 5–7 years. Chrome-tanned calf is less durable (2–4 years). Rubber has longer service cycles (5–10 years) but loses elasticity over time. Monthly cleaning with a damp cloth and annual conditioning significantly extend useful life.

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