Strap for Navitimer Rattrapante Stainless Steel / Black / Bracelet

The Breitling Navitimer AB031021/BF77/453A has a lug width of 24mm. This dimension is specific to large-diameter Navitimer models (45mm case) and requires straps made precisely to this measurement. Before ordering an aftermarket strap, verify the lug width using a calliper inserted between the lugs at their narrowest point.

For a 45mm Navitimer, the ideal strap depends on intended use. Vegetable-tanned alligator leather is the most refined option and develops a natural patina over time. Smooth calfskin offers greater versatility. Anatomical rubber is suited to sport use or humid environments. Ballistic NATO nylon references the model's aeronautical heritage. A deployant clasp in brushed or satin-finished steel is preferable to a standard buckle for wrist stability and reduced wear on the strap underside.

The strap is replaced by releasing the spring bars connecting it to the case lugs. A fine-tipped spring bar tool inserted into the lateral hole of the bar compresses the spring and releases the strap. The operation is non-invasive and reversible, achievable in a few minutes without professional equipment. It is nonetheless advisable to consult a trusted watchmaker to avoid scratching the case.

Yes, aftermarket straps specifically made for 24mm lugs are available for the Navitimer. Milano Straps and Casati Milano atelier produce straps in this size across various materials: alligator, calfskin, shell cordovan, rubber, and NATO. It is essential to specify the 24mm measurement when ordering, as not all manufacturers cover this non-standard lug width.

The lifespan of a leather strap depends on the quality of the tanning, exposure to perspiration and moisture, and frequency of wear. A high-quality vegetable-tanned alligator or calfskin strap, worn regularly but not daily, typically lasts between 2 and 4 years. Prolonged exposure to water significantly reduces longevity. Casati Milano offers an 18-month warranty against manufacturing defects on all bespoke straps.