Strap for Navitimer B01 Chronograph 43 Red Gold / Black / Bracelet

The Breitling Navitimer RB0138211B1R1 has a lug width of 22mm. This is a fixed technical specification for the model: any aftermarket or replacement strap must measure exactly 22mm at the head to ensure correct fitment and a visually coherent result with the 43mm red gold case.

For an 18-carat red gold case, the most appropriate materials are vegetable-tanned alligator (belly or flank cut, in cognac or havana tones), smooth box calf leather, and shell cordovan, which develops a natural patina that ages in harmony with the red gold. Vulcanised rubber is recommended for sporting contexts. In all cases, the strap must have a 22mm lug width with shaped ends to accommodate the curvature of the lugs.

To replace the strap on the Navitimer RB0138211B1R1, a fine-tipped spring bar tool is required. Insert the tip into the lateral slot of the spring bar, compress it inward and slide the strap free. It is advisable to work on a soft surface to avoid scratching the red gold case. With practice, the operation takes under two minutes. If in doubt, a watchmaker or the Casati Milano atelier can assist with the replacement.

Yes. The Breitling Navitimer RB0138211B1R1 uses a standard spring bar system with 22mm lug width, compatible with the vast majority of aftermarket 22mm straps on the market. Milano Straps offers a curated selection of handcrafted straps in 22mm, specifically compatible with this model, available in various materials and finishes at milanostraps.it/collections/cinturini-orologi-per-misura-ansa-22mm.

The lifespan of a leather strap depends on the material, frequency of use and care. A quality vegetable-tanned alligator strap, used in rotation and kept away from moisture, typically lasts 3 to 5 years before requiring replacement. Shell cordovan, due to the density of its fibres, tends to last longer whilst developing character. Milano Straps straps carry an 18-month guarantee against manufacturing defects.