Strap for Chronomat 44 Stainless Steel / Onyx Black / Bracelet

The lug width of the Breitling Chronomat B01 44 AB0110121B1A1 is 22mm. This measurement is taken between the lugs at the point where they meet the case back. Any standard 22mm strap is compatible with this reference.

The most suitable straps for the Chronomat B01 44 AB0110121B1A1 are vegetable-tanned calfskin for everyday wear, semi-gloss alligator for formal occasions, vulcanised rubber for sports use, and NATO nylon to honour the model's aviation heritage. The correct lug width is 22mm.

To replace the strap on the Chronomat B01 44, use a spring bar tool or a flat-head watchmaker's screwdriver to release the spring bars from the lugs. Rest the case on a soft cushion to avoid scratches. Standard 22mm spring bars are compatible with most aftermarket straps.

Yes, the aftermarket offers a wide range of straps compatible with the Chronomat B01 44 AB0110121B1A1, provided they are 22mm at the lug end. Milano Straps offers handcrafted leather, rubber and textile straps made specifically for this width, with materials and finishing comparable to Breitling originals.

The lifespan of a leather strap depends on the quality of the hide, maintenance and frequency of use. A high-quality vegetable-tanned calfskin strap typically lasts 2–4 years with daily wear. A premium alligator strap, regularly conditioned with a neutral leather cream, can last well over 5 years while retaining its grain and colour integrity.