Strap for Navitimer B01 Chronograph 43 Stainless Steel / Copper / Bracelet

The Breitling Navitimer AB0138241K1A1 has a lug width of 22mm. This is the standard measurement for the entire Navitimer family in the 43mm case size. To verify it, measure the distance between the two lugs at the widest outer point using a digital calliper, perpendicular to the longitudinal axis of the watch.

For the Navitimer AB0138241K1A1, the most fitting options are: vegetable-tanned calfskin for daily wear that develops a natural patina over time, matte alligator for formal occasions, nylon NATO for an authentic aviation aesthetic, and vulcanised rubber for sports or water use. The correct width is 22mm. Milano Straps offers all these options with bespoke artisan customisation.

The strap on the Navitimer AB0138241K1A1 is removed using a spring bar tool inserted into the side slot of the lug to compress the spring bar. Care should be taken to avoid scratching the stainless steel case; protecting the surface with low-tack masking tape is advisable. The 22mm spring bar is then reused to secure the new strap.

Yes, the Navitimer AB0138241K1A1 accepts any aftermarket strap with a 22mm lug width and a straight end. No curved lugs or adapters are required. Milano Straps crafts artisan straps specifically compatible with this width, available in a wide range of materials and colours, with either a standard buckle or a stainless steel deployant clasp.

The longevity of a leather strap depends on the material, frequency of use, and exposure conditions. A vegetable-tanned calfskin strap worn daily typically lasts between 2 and 4 years before showing structural wear. High-grade alligator can last over 5 years with proper care. Milano Straps straps come with an 18-month warranty covering manufacturing defects.