Tudor · Black Bay One

Strap for Heritage Black Bay 32 Stainless Steel / Black / Fabric

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

Lug width20 mm
Case diameter32 mm
Reference79580-0002 (aka: M79580-0002)
FamilyBlack Bay One
MovementTudor caliber T600 hours, minutes, seconds
Year2018
CaseStainless Steel

Spring bar

Spring bars for Tudor

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

Straps for the Black Bay One 79580-0002 (aka: M79580-0002)

Selected for the 20 mm lug width · workshop selection

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The Black Bay One 79580-0002 (aka: M79580-0002), seen from the bench

The Tudor Black Bay One 79580-0002 is a 32mm stainless steel watch with a 20mm lug width, part of the Heritage Black Bay collection. It features the Tudor caliber T600, a manual and automatic mechanical movement certified COSC, with a power reserve exceeding three days. The watch includes a unidirectional bezel, screw-down crown rated to 100 meters, and a dark blue dial with luminescent indices.

Frequently asked questions

What is the exact lug width of the Tudor Black Bay One 79580-0002?

The lug width of the Tudor Black Bay One 79580-0002 is 20 millimetres, measured between the two lugs on the case. This specification is consistent for all versions of the model, whether fitted with steel or rubber strap originally. You can verify this by removing the current strap with a spring bar tool and measuring from lug to lug using a digital calliper.

Which strap material best suits the Tudor Black Bay One 79580-0002?

The Tudor Black Bay One 79580-0002 pairs excellently with high-grade alligator leather, satin-finished calf, or shell cordovan in dark blue, cognac brown, or black. For sports or maritime use, vulcanised rubber straps or NATO fabric with coordinated stitching are equally recommended. The choice depends on the aesthetic balance you seek between elegance and tactical functionality.

How do I change the strap on a Tudor Black Bay One 79580-0002?

To change the strap on your Tudor Black Bay One 79580-0002, obtain a spring bar tool (or consult a specialist watchmaker). Place the watch on a flat surface, insert the tool's prong into the small slot at the lug base, lift gently to release the spring bar, and slide it out. Repeat on the opposite side. To install the new strap, align its lugs with the case, push until you hear a soft click, and verify both ends are secure.

Are aftermarket 20mm straps compatible with the Tudor Black Bay One 79580-0002?

Yes, completely. The Tudor Black Bay One 79580-0002 is compatible with any bespoke or professional strap featuring a 20mm lug width. On milanostraps.it you will find a comprehensive range of customisable leather straps (alligator, calf, shell cordovan) with options for sizing, initials, and stitching colour. Casati Milano atelier also offers made-to-measure services with personal consultation.

What is the typical lifespan of a leather strap on a Tudor Black Bay One 79580-0002?

A premium leather strap (alligator, calf, shell cordovan) fitted to a Tudor Black Bay One 79580-0002 typically lasts 3–5 years with daily wear, depending on intensity of use, tanning method, and maintenance. The leather develops a natural patina over time, adding aesthetic character. By keeping the strap dry and periodically checking the lug attachment, you can extend its longevity. Vulcanised rubber straps offer greater durability, around 5–7 years.

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