Strap for Navitimer B01 Chronograph 46 Stainless Steel / Blue / Alligator - Folding

The Breitling Navitimer AB0137211C1P1 has a lug width of 24mm. This is one of the widest measurements in the sport-instrument segment and requires straps specifically made for this width, with the correct taper towards the buckle or deployant clasp.

For the 46mm steel Navitimer, a vegetable-tanned calf leather strap is the most versatile option: it transitions seamlessly from casual to formal settings and develops a distinctive patina over time. For a more sporting look, vulcanised rubber preserves the original tool-watch character. Alligator belly leather with symmetrical scales offers the most refined and structured aesthetic.

The Navitimer strap is replaced using a fine-tipped spring bar tool. The spring bars are accessible laterally between the case lugs. It is advisable to work on a soft surface to avoid scratching the stainless steel case. If in doubt, a watchmaker or the Casati Milano atelier can complete the swap in a matter of minutes.

Yes. Any strap with a 24mm attachment and standard spring bars is compatible with the Navitimer AB0137211C1P1. It is important to verify that the overall length (typically 75/115mm or 75/120mm for cases of this diameter) suits your wrist circumference. Milano Straps offers a dedicated selection for the 24mm lug width, crafted in Italian artisanal leathers.

Longevity depends on the material and usage. A quality vegetable-tanned calf leather strap, worn daily with proper care, typically lasts 2–4 years. Alligator, being denser and more compact, can exceed 5 years. It is essential to avoid prolonged exposure to water and perspiration, and to occasionally apply a natural leather conditioner to keep the fibres supple.