Strap for Navitimer Rattrapante Red Gold / Black / Calf / Pin

The lug width of the Breitling Navitimer RB031121/BG11/443X/R20BA.1 is 24 mm. This is a substantial measurement, consistent with the 45 mm case diameter of this reference. To confirm the lug width on your own piece, we recommend using a digital calliper positioned internally between the lugs, flush against the case.

For a Navitimer in Red Gold measuring 45 mm, the most coherent choices are vegetable-tanned alligator leather in cognac, bordeaux or tobacco — shades that complement the warm chromatic tone of the rose gold case — and shell cordovan, which develops a dignified patina over time. For a sportier approach, grained calf leather or a heavy-duty nylon NATO strap are sound alternatives. A butterfly deployant clasp is recommended to distribute the weight of the case evenly across the wrist.

The Navitimer uses a standard spring bar system with 24 mm spring bars. Replacement requires a spring bar tool: insert the forked tip into the lug hole, compress the spring bar and slide the strap free. The procedure is fully reversible and does not require a watchmaker, though care should be taken to avoid scratching the Red Gold case. Casati Milano can provide step-by-step guidance via WhatsApp if required.

Yes. Milanostraps.it offers a curated selection of handcrafted aftermarket straps specifically designed for the 24 mm lug width, fully compatible with the Breitling Navitimer. Each strap is crafted from carefully selected materials — alligator, calf, shell cordovan, NATO nylon — and can be tapered to 22 or 20 mm at the buckle end to ensure correct proportions on the wrist.

The lifespan of a leather strap depends on the quality of the hide, the frequency of wear and the care applied. A high-quality vegetable-tanned alligator strap worn daily and treated periodically with a suitable leather conditioner can last between three and five years while retaining a presentable appearance. Shell cordovan, owing to its dense and non-porous structure, tends to age particularly well, developing a characteristic patina over time. Casati Milano provides an 18-month warranty against manufacturing defects on all straps produced in the atelier.