Strap for Black Bay GMT Stainless Steel / Black / Pepsi / Leather

The Tudor Black Bay GMT 79830RB-0002 requires a strap with a lug width of 22 millimetres. This dimension is specific to the model and is not interchangeable with 20mm or 24mm lugs. Measurement is performed by taking the distance between the lugs using a digital calliper or by verifying the official Tudor documentation.

For the Black Bay GMT, we recommend vegetable-tanned leather (alligator or calf) in dark shades such as dark brown or rich maroon. These materials age beautifully and create an elegant contrast with the black dial and metal bezel. For water activities or high-humidity environments, an FKM rubber strap is the practical choice.

To change the strap, you will need a spring bar removal tool. Position the watch face down, insert the tool into the small side holes of the lugs, gently push to release the internal spring and extract the lug. Insert the new lugs into the compatible 22mm strap and reinsert them into the case housings until you hear a click.

Yes, any strap with a 22mm lug width is compatible with the 79830RB-0002, provided the lugs are standard. Custom artisan straps from Milano Straps are fully compatible, available in vegetable-tanned leather, alligator, shell cordovan and rubber, with the possibility of customising length, initials and stitching thread.

A high-quality leather strap made with vegetable tanning has an average lifespan of 3-5 years of daily use, depending on climate, humidity and care. Artisan straps in alligator or shell cordovan have a longer lifespan, often 5-7 years, thanks to the density of the fibre. Vegetable tanning develops a noble patina over time: ageing is not deterioration but aesthetic evolution. Casati Milano offers an 18-month warranty on all bespoke straps.