Tudor · Black Bay

Strap for Heritage Black Bay Black 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
Reference79230n-0002
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-0002

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Black Bay 79230n-0002, seen from the bench

The Tudor Black Bay 79230n-0002 is a diver tool watch with a 41mm stainless steel 904L case and 22mm lug width, featuring the signature "Big Crown" and bicolour bezel. It is powered by the Tudor MT5602 automatic movement, an in-house calibre certified as a chronometer with a 70-hour power reserve. This Heritage Black Bay model combines Tudor's diving heritage with modern construction standards.

Frequently asked questions

What is the lug width of the Tudor Black Bay 79230n-0002?

The Tudor Black Bay 79230n-0002 features a lug width of 22mm. This measurement refers to the internal distance between the two spring bars that attach the strap to the case lugs. It is essential to measure your watch's lug width accurately before purchasing an aftermarket strap, as 20mm or 24mm straps will not fit correctly.

Which strap is most suitable for the Tudor Black Bay 79230n-0002?

The Black Bay 79230n-0002 accommodates multiple 22mm strap options. An alligator leather with regular grain offers sophistication whilst maintaining the tool watch character; vegetable-tanned calf develops natural patina over time; a NATO Premium recalls the model's military heritage with contemporary practicality. Your choice depends on personal style and intended use: leather for formal versatility, NATO for sporty authenticity.

How do you change the strap on a Tudor Black Bay 79230n-0002?

The 79230n-0002 strap is changed by removing the two lateral spring bars securing it to the case lugs. Use a spring bar tool, inserting the flat tip beneath the bar and gently levering outward. Once the bars are removed, the old strap detaches. To install the new 22mm strap, reinsert the bars into their seats, ensuring they are firmly locked on both sides. A precision-fitted strap ensures proper alignment and security.

Are there compatible aftermarket straps available for the Tudor Black Bay 79230n-0002?

Yes, numerous aftermarket straps in 22mm are compatible with the 79230n-0002. Milano Straps offers a curated collection of artisanal straps for this lug width, crafted from premium materials including alligator, shell cordovan, vegetable-tanned calf, and technical textiles. All straps are customisable in length, colour, and stitching finishes, with rapid shipping and dedicated support.

How long does a leather strap last on a watch like the Black Bay 79230n-0002?

Leather strap longevity depends on material quality and usage patterns. A grain-finished alligator strap, properly maintained and not subjected to excessive stress or prolonged salt-water exposure, typically lasts 3-5 years before replacement becomes necessary. Vegetable-tanned calf offers similar durability whilst developing distinctive natural patina. For frequent maritime use or intensive sport, alternating the leather strap with a NATO Premium or FKM rubber option extends the lifespan of both.

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