Strap for Aviator 8 Automatic 41 Stainless Steel / Black / Calf / Pin

The lug width of the Breitling AVI A17315101B1X3 is 21mm. This is a non-standard size compared to the more common 20mm or 22mm, so it is essential to verify this measurement with a calliper before purchasing a replacement strap.

For the Breitling AVI A17315101B1X3, straps in semi-matte alligator leather, vegetable-tanned calf leather, or shell cordovan are the most appropriate choices for formal wear. For a sportier look faithful to the aviator-military aesthetic, a ballistic nylon NATO strap or vulcanised rubber strap are excellent alternatives. The correct width is 21mm.

To replace the strap on the Breitling AVI A17315101B1X3, you will need a spring bar tool to remove the spring bars from the 21mm lugs. It is advisable to work on a soft surface to protect the stainless steel case from scratches. If in doubt, it is best to consult a watchmaker or the Casati Milano atelier.

Yes, high-quality aftermarket straps compatible with the Breitling AVI A17315101B1X3 are available. The 21mm lug width requires bespoke artisan production or careful selection from available models. Milanostraps.it offers a range of compatible 21mm straps, including handcrafted options made by the Casati Milano atelier using premium materials.

The lifespan of a leather strap on a Breitling AVI A17315101B1X3 depends on leather quality and daily use. A well-maintained vegetable-tanned calf leather strap typically lasts 2–4 years; a high-quality alligator or shell cordovan strap can exceed 5–7 years with regular care. Casati Milano straps carry an 18-month production defect warranty.