Strap for Aviator 8 Chronograph 43 Stainless Steel / Blue / Bracelet

The Breitling AVI A13316101C1A1 features a 23 mm lug width, a non-standard measurement derived from the technical specifications of the original 1953 Co-Pilot. To verify it, use a digital calliper measuring the internal distance between the two lugs at the narrowest point.

To honour the aeronautical and military character of this reference, vegetable-tanned calf leather with a matte finish is the most historically coherent choice. A ballistic nylon NATO strap in olive drab or khaki further emphasises the Co-Pilot heritage. Hornback alligator leather is recommended for more formal occasions.

Strap replacement requires a fine-tipped springbar tool. Insert the tool into the lug slot, compress the springbar and slide the strap free. The 23 mm lug width requires springbars of the correct size — standard 20 mm or 22 mm springbars are not compatible. Work on a soft cloth to avoid scratching the case.

Yes, though the 23 mm lug width significantly limits the mass-market offering. Milano Straps stocks a curated selection of handcrafted 23 mm straps compatible with this reference, available online. For a fully bespoke solution — leather, stitching, buckle — the Casati Milano atelier produces made-to-measure straps for this specific reference.

Longevity depends on leather quality and frequency of wear. A quality vegetable-tanned calf leather strap, properly maintained with leather conditioner every two to three months and kept away from prolonged moisture, can last three to five years whilst developing an authentic patina. Alligator or shell cordovan straps, owing to their denser hide structure, typically last considerably longer.