Strap for Avenger II GMT Stainless Steel / Volcano Black / Calf / Folding

The lug width of the Breitling Avenger A3239011/BC34/437X/A20BA.1 is 22mm. This is the internal distance between the case lugs, which should be measured with a millimetre ruler before purchasing any aftermarket strap.

For the Breitling Avenger II GMT 43mm, the most suitable materials are vegetable-tanned alligator leather for a formal-sport aesthetic, technical nylon NATO for consistency with the watch's aeronautical identity, and vulcanised rubber for intensive sport or diving use. The ideal choice depends on context and preferred colour combinations.

Remove the strap using a fine-tipped or forked spring bar tool, applying light pressure against the spring bar within the lug. Work on a soft surface to protect the case finish. The straight lugs of the Avenger make the operation straightforward; with minimal practice, each side takes under two minutes.

Yes, any strap with a 22mm attachment width and flat ends is compatible with the Breitling Avenger A3239011/BC34/437X/A20BA.1. Milano Straps offers a curated selection of handcrafted leather, NATO, and rubber straps specifically sized for 22mm lugs, with bespoke customisation available through the Casati Milano atelier.

A quality leather strap — box calf or vegetable-tanned alligator — on a daily-worn Breitling Avenger typically lasts between 18 and 36 months, depending on exposure to perspiration, water, and UV light. Regular conditioning with a colourless leather cream and rotating between two or more straps can significantly extend the lifespan of the leather.