Tudor · Black Bay 58

Strap for Tudor Black Bay 58 M79018V

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
ReferenceM79018V
FamilyBlack Bay 58
MovementTudor caliber MT5400 Hours, Minutes, Seconds | Chronometer

Spring bar

Spring bars for Tudor

The right category for this model · choose the 20 mm size

Straps for the Black Bay 58 M79018V

Selected for the 20 mm lug width · workshop selection

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The Black Bay 58 M79018V, seen from the bench

The Tudor Black Bay 58, introduced in 2018, is a reduced version of the brand's Black Bay collection. It is equipped with the automatic MT5400 caliber, certified as a chronometer, and offers a 70-hour power reserve. The 39mm case is made of yellow gold with 20mm lugs and functions include hours, minutes, and seconds.

Frequently asked questions

What is the lug width of the Tudor Black Bay 58 M79018V?

The lug width of the Tudor Black Bay 58 M79018V is 20mm. This measurement represents the distance between the two lugs that attach the strap to the case. You can verify this by measuring with a digital calliper between the internal lugs of the case or by consulting the official Tudor documentation for this model.

What is the best strap for the Tudor Black Bay 58 M79018V?

The best strap depends on your personal style. Cognac-brown alligator amplifies the sophistication of the yellow gold case. If you prefer versatility, vegetable-tanned calf offers durability and authentic patina development. To maintain the sport character, a cotton-heavy NATO strap or vulcanised rubber is excellent. All options must have a 20mm lug width for perfect compatibility.

How do I change the strap on my Tudor Black Bay 58 M79018V?

To change the strap, use a spring bar removal tool. Position the tool under the spring bar and gently press upward to release tension. Once removed, slide the old strap out of the lugs. Thread the new 20mm strap through the lugs and reinsert the spring bars until they click firmly into place. Verify the strap is securely attached before wearing the watch.

Can I use an aftermarket strap on my M79018V?

Yes, absolutely. Any strap with a 20mm lug width is compatible with the Tudor Black Bay 58 M79018V. Artisanal aftermarket straps often offer superior quality compared to original versions and allow customisation in leather, colour, and stitching details. Always verify that the strap thickness suits the case lugs for smooth installation.

How long does a leather strap last on a watch like the Black Bay 58?

Leather strap durability depends on the material and usage patterns. Quality artisanal alligator typically lasts 5-7 years with daily wear. Vegetable-tanned calf resists 4-6 years. Shell cordovan, being extremely dense, can exceed 10 years. Excessive humidity and direct UV rays accelerate ageing. A well-maintained strap develops a fascinating patina over time, adding character to your watch rather than simply deteriorating.

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