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-0003
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-0003

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Black Bay 79230R-0003, seen from the bench

The Tudor Black Bay 79230R-0003 is a 41mm stainless steel sports watch rooted in 1950s French Navy dive instruments. It features the iconic Big Crown without shoulders, unidirectional black anodized aluminum bezel, and deep red dial. The Tudor MT5602 movement delivers COSC-certified chronometry with anchor escapement at 4 Hz. Water-resistant to 200 meters with 316L steel case and quick-release strap lugs. The 22mm lug width accommodates various strap materials—from alligator to vegetable-tanned Tuscan leather or NATO fabric.

Frequently asked questions

What is the exact lug width of the Tudor Black Bay 79230R-0003?

The lug width of the Tudor Black Bay 79230R-0003 is 22mm. This measurement represents the internal distance between the lugs on the case where the strap is fitted. It is essential to verify this specification before purchasing, as straps of incorrect width will not install properly.

What is the best strap to pair with the Tudor Black Bay 79230R-0003?

Tuscan leather with vegetable tanning in Tobacco Brown is the ideal complement: its earthy warmth dialogues elegantly with the dial's red whilst maintaining stylistic restraint. Alternative refinements include dorsal alligator with regular grain, navy NATO fabric for sporting versatility, or burgundy shell cordovan for those seeking historical continuity with original Black Bay references.

How do I change the strap on the Tudor Black Bay 79230R-0003?

This model features spring bar quick-release lugs, which simplifies strap changes considerably. Gently press the spring bar from the rear of the lug until you feel the release mechanism engage, then pull the strap outward. Align your new 22mm strap with the lug holes and press firmly until you hear the audible click, confirming proper installation.

Can I use an aftermarket strap compatible with the Tudor Black Bay 79230R-0003?

Yes, any certified 22mm strap of adequate quality is compatible with your watch. We recommend choosing specialised manufacturers or artisans who guarantee precise manufacturing tolerances and sustainable materials. Milano Straps offers a comprehensive collection of customisable 22mm straps, crafted with meticulous attention to structural detail and finishing, alongside bespoke options available through the Casati Milano atelier.

How long does a natural leather strap last on a watch like the Tudor Black Bay?

Strap longevity depends on tanning method, usage patterns, and maintenance discipline. With vegetable tanning (the most sustainable), a quality artisanal Tuscan calf develops an enchanting patina over 2-3 years of daily wear whilst maintaining structural integrity for 4-5 years. Alligator typically outlasts calf owing to natural skin density. Excessive solar exposure or constant humidity will diminish lifespan. Proper care—drying after water exposure—significantly extends strap 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.

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