Strap for Navitimer B01 Chronograph 43 Stainless Steel / Wempe Signature Collection

The Breitling Navitimer AB01387A1C1P1 has a lug width of 22 mm. This measurement is essential when selecting any aftermarket strap. It is recommended to verify the exact dimension using a digital calliper measured directly between the lugs before purchasing a replacement strap.

The ideal choice depends on the intended context. For formal or semi-formal wear, a smooth-belly alligator strap in tobacco or midnight blue flatters the black dial. For daily use with developing patina, vegetable-tanned calf leather is a highly regarded option. A nylon NATO strap stays true to the model's tool-watch heritage, while vulcanised rubber is preferable for sporting or marine environments.

Strap replacement is performed by removing the spring bars that attach the strap to the case lugs. Using a dedicated spring bar tool, compress the bar, slide out the existing strap, and fit the new one. The procedure takes only a few minutes and requires no specialist equipment, although care should be taken to avoid scratching the stainless steel case.

Yes. Any 22 mm strap with straight ends is technically compatible with the Navitimer AB01387A1C1P1. Milano Straps offers a curated selection of handcrafted leather, nylon, and rubber straps in this size. For vintage Navitimer variants, curved ends may be required — it is advisable to confirm the specific model before ordering.

The lifespan of a leather strap depends on the quality of the tanning process, frequency of use, and exposure to moisture and perspiration. A high-quality alligator or vegetable-tanned calf strap, worn with care and stored properly, will retain its structural and aesthetic integrity for 3 to 5 years. Casati Milano provides an 18-month guarantee against manufacturing defects on all its straps.