Strap for Navitimer B19 Chronograph 43 Perpetual Calendar Time for Art

The Breitling Navitimer RB19102A1L1P1 features a lug width of 22mm. This is the standard measurement for the 43mm Navitimer variant. To verify independently, measure with a digital calliper at the inner side of the lugs, where the strap inserts into the case.

For the 18-carat red gold case, the most suitable straps are belly alligator with rectangular grain in bordeaux, cognac or tobacco brown, or shell cordovan in whisky. Both complement the warm tones of red gold. Vegetable-tanned calf leather is a strong choice for daily wear, as it develops a distinctive patina over time.

The strap is replaced by removing the spring bars securing it to the case lugs. Use a dedicated spring bar tool or a soft-tipped lever to avoid scratching the red gold surfaces. The Navitimer lugs are curved: ensure the new strap has correctly profiled ends to lie flat and comfortably against the wrist.

Yes. Any quality aftermarket strap with a 22mm lug width and curved-end profile is compatible. Milano Straps offers a selection of handcrafted 22mm straps in various materials — alligator, vegetable-tanned calf, shell cordovan and rubber — produced to specifications suited to the Breitling Navitimer lug geometry.

Longevity depends on the material and usage. A quality alligator strap, with proper care and rotation, can last between 3 and 6 years. Vegetable-tanned calf has an average lifespan of 2 to 4 years, developing character over time. Shell cordovan, due to its dense fibre structure and glazed surface, is among the most durable and can exceed 5 years. Avoiding prolonged contact with water and perspiration significantly extends strap life.