Strap for Chronomat 44 Stainless Steel / Sierra Silver Roman / Rubber

The Breitling Chronomat B01 44 AB011012.G676.145S has a lug width of 22mm. This is a standard measurement for large-diameter sports chronographs and ensures a wide selection of compatible aftermarket straps in leather, rubber or nylon.

For the Chronomat B01 44 in stainless steel with a 44mm case, the most suitable options are: black or anthracite alligator belly for a formal-sport register, vegetable-tanned calf leather in tobacco brown for a warmer look, and vulcanised black rubber for intensive use. All straps must match the 22mm lug width, and a deployant clasp is recommended to distribute the case weight correctly.

To replace the strap, a spring bar tool with a fine tip is required. Insert the tip into the slot between the lug and the strap, compress the spring bar inward and slide the strap free. Breitling uses 1.8mm diameter spring bars: it is advisable to replace them at the same time to reduce the risk of accidental release. The operation takes approximately 5 minutes and does not require professional tools.

Yes. Any strap with a 22mm lug width and straight or slightly curved ends is compatible with the Chronomat B01 44. Milano Straps offers a selection of handcrafted 22mm straps in leather, rubber and NATO weave, available bespoke or ready to order online, designed to suit the geometry of Breitling lugs.

Longevity depends on the material and frequency of use. A quality alligator strap, worn regularly but not daily, typically lasts 2 to 4 years before showing wear at the buckle or flex point. Vegetable-tanned calf leather is more porous, making it more susceptible to perspiration and moisture, and requires periodic conditioning. With proper care and strap rotation, service life can be extended significantly. Casati Milano offers an 18-month warranty against manufacturing defects.