Strap for Chronomat 44 Stainless Steel / Blue MOP / Croco Rubber

The lug width of the Breitling Chronomat B01 44 AB01102A.C946.290S is 22 mm. This measurement refers to the internal distance between the case lugs, i.e. the exact point where the strap is fitted. To verify this on your own piece, it is recommended to use a digital calliper or a millimetre ruler placed transversally between the two lugs.

The most suitable materials for the Chronomat B01 44 are vegetable-tanned alligator for a formal register, grain calf leather for versatile everyday use, and vulcanised rubber for sporting contexts. The 22 mm lug width allows for structured straps that are proportionate to the 44 mm case. A brushed steel deployant buckle is the most coherent closure choice given the original finish of the watch.

To replace the strap on the Chronomat B01 44, a spring bar tool is required to remove the spring bars from the lugs. Care should be taken to avoid scratching the case: it is advisable to protect the lugs with soft masking tape or a microfibre cloth. The new 22 mm strap is fitted by engaging the spring bars into their designated seats.

Yes, there are numerous aftermarket options compatible with the Breitling Chronomat B01 44 in the 22 mm size. Milano Straps offers handcrafted straps in alligator, calf leather and other materials, made with standard 22 mm spring bars suitable for the original Chronomat lugs. The quality of materials and stitching is comparable to original straps, with a wide choice of colours and finishes.

The lifespan of a leather strap depends on the quality of the tanning process, frequency of use, and exposure to perspiration and moisture. A vegetable-tanned calf leather strap, with regular conditioning using a nourishing cream, can last between 2 and 4 years with daily use. A high-grade alligator strap, owing to the compactness of its fibres, tends to last longer while retaining its original shape. Milano Straps guarantees its straps for 18 months against manufacturing defects.