Strap for Avenger II GMT Stainless Steel / Mariner Blue / Calf / Folding

The lug width of the Breitling Avenger A3239011/C872/436X/A20D.1 is 22mm. This measurement should be taken with a vernier calliper between the inner surfaces of both lugs to ensure accurate compatibility with any aftermarket strap.

The ideal choice depends on context. For formal occasions, a Hornback alligator strap in tobacco brown or black offers the most refined finish. For everyday or active use, vegetable-tanned calfskin or a ballistic nylon NATO strap provides durability and versatility. Vulcanised rubber is recommended for intensive or water-exposed use.

Strap replacement requires a spring bar tool to compress and remove the spring bars seated within the lugs. Insert the forked tip into the spring bar slot, compress inward and slide laterally to release. No watchmaker is required for this operation, though care should be taken to avoid scratching the steel lug surfaces.

Yes. Any strap with a 22mm lug width is technically compatible. Milanostraps.it offers handcrafted leather, NATO and rubber straps specifically sized to 22mm, with buckle or deployant clasp options in polished or brushed steel to match the Avenger's original case finish.

Longevity depends on leather quality, tanning method and frequency of use. A high-quality vegetable-tanned calfskin strap, with regular use and proper maintenance (conditioning cream, limited moisture exposure), typically lasts 2 to 4 years. Alligator or shell cordovan straps, owing to their denser fibre structure, generally outlast calfskin under equivalent conditions.