Strap for Navitimer B01 Chronograph 41 Stainless Steel / Blue MOP Japan / Bracelet

The lug width of the Breitling Navitimer AB0139211C2A1 is 22mm. This measurement refers to the internal distance between the two lugs of the case and is the key parameter for selecting a compatible strap. The strap typically tapers to 20mm at the keeper and buckle end.

For the Navitimer AB0139211C2A1, the most suitable materials are smooth-grain calf leather in black or tobacco brown for everyday wear, alligator in midnight blue or anthracite for formal occasions, and NATO nylon or vulcanised rubber for sporting use. A deployant clasp in polished steel is the most coherent closing mechanism given the watch's technical character.

To replace the strap on the Navitimer AB0139211C2A1 you will need a spring bar tool to release the spring bars securing the strap to the 22mm lugs. The operation takes approximately 2–3 minutes and does not require case opening. It is advisable to work on a soft surface to avoid scratching the stainless steel case.

Yes, any strap with a 22mm attachment tapering to 20mm is compatible with the Navitimer AB0139211C2A1. Milano Straps produces bespoke handcrafted straps specifically for this lug width, available in a range of materials and finishes. It is important to ensure the spring bars have the correct diameter (1.8mm standard) for Breitling lugs.

The lifespan of a leather strap depends on the material, frequency of use, and maintenance. A vegetable-tanned calf strap, properly cared for, typically lasts 2–4 years; a quality alligator strap, used in rotation, can exceed 5 years. Shell cordovan is among the most wear-resistant options. Milano Straps provides an 18-month warranty against manufacturing defects on all handcrafted straps.