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

The Breitling Navitimer RB031121/BG11/439X/R20BA.1 features a 24mm lug width, which corresponds to the distance between the spring bar attachment holes. This measurement is model-specific and essential to verify before purchasing an aftermarket strap to ensure perfect fit.

For a Navitimer RB031121/BG11/439X/R20BA.1 in rose gold, we recommend natural or black-dyed alligator (geometric elegant texture), fine cognac calf (sartorial restraint), or burgundy shell cordovan for developing patina over time. A navy NATO with red stripe is ideal for aviation use, while a solid rose gold deployant clasp maintains material coherence with the case.

Changing the strap requires a spring bar tool of compatible diameter. Insert the tool horizontally into the lug holes, gently lift to compress the internal spring, and slide out the old strap. Repeat on the opposite side. Insert the new 24mm strap, ensuring the pins seat properly in the holes. For absolute security, Casati Milano can assist with the installation.

Yes, provided they have exactly 24mm lug width and appropriate hole depth (1.8–2.2mm) matching your lugs. Milano Straps supplies artisan-crafted 24mm straps with compatibility guarantee. Straps of 22mm or 26mm will not fit correctly and may compromise lug integrity.

Lifespan varies by material: fine calf leather lasts 2–4 years with daily wear; alligator 3–5 years; shell cordovan 4–6 years due to natural density. Vegetable tanning ensures superior longevity versus synthetic dyes. Milano Straps offers 18-month warranty on all artisan straps, with strap regeneration options available.