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

The lug width of the Breitling Avenger A1337111/BC29/444X/A20D.1 is 24 millimetres. This measurement refers to the horizontal distance between the two steel attachments positioned laterally on the case. To verify it correctly, use a digital calliper and measure from the innermost point of one lug to the innermost point of the opposite lug. It is critical not to confuse this dimension with the case diameter (48mm): the 24mm concerns only the width of the compatible strap.

The choice of strap depends on the intended use. For professional and tactical applications, a NATO strap in black polyamide offers maximum reliability and grip in wet conditions. For a balance between aesthetics and functionality, genuine alligator with traditional Florentine vegetable tanning creates an elegant visual contrast without burdening the 48mm case. Vegetable-tanned calf leather guarantees a gracefully ageing patina. For extremely high-altitude environments or extreme temperature fluctuations, vulcanised rubber prevents dimensional variations due to moisture absorption.

Strap replacement requires the use of a spring bar tool (implement with a blunt tip) to compress the tension rod (spring bar) inside the attachment holes on the case. Position the tool's tip in one of the terminal holes, compress gently to release the pressure, then extract the rod using tweezers with a blunt tip. Repeat the operation from the other side. Insert the new strap by first passing one end through the attachment, then compress the opposite spring bar and insert the other end. Verify that the rod is fully engaged on both sides.

All straps with a 24-millimetre lug width are compatible. Milano Straps offers a specialised collection of 24mm straps in leather, alligator, shell cordovan and NATO fabrics, all customisable in length, thread colour and initials. Always verify that the chosen strap has been constructed without pre-installed attachment screws, as the Avenger model uses standard spring bars that attach easily without the need for specialist tools. For bespoke straps and personalised advice, the Casati Milano atelier offers handcrafted creations with an 18-month warranty.

The lifespan of a leather strap depends on usage intensity and environmental conditions. A calf strap with traditional Florentine vegetable tanning, worn daily, maintains full functionality between 3 and 5 years before requiring replacement due to stitching wear or leather softening. Genuine alligator, thanks to the fibre density of its scale, offers a slightly longer lifespan (4-6 years). Replacement is recommended when the strap begins to show cracks in the fold closure or when stitching visibly loosens. Continuous exposure to moisture, direct sunlight or extreme temperatures significantly reduces durability. Rubber or NATO fabric straps offer superior resistance, maintaining structural integrity beyond 7-10 years.