Strap for Chronomat 44 Stainless Steel / Onyx Black Roman / Rubber

The lug width of the Breitling Chronomat B01 44 AB011012.B956.131S is 22mm. This measurement is taken with a millimetre calliper across the internal gap between the two lugs at the point where the strap inserts into the case. It is a standard dimension that ensures broad compatibility with quality aftermarket straps.

The choice depends on intended use. For a sporting pairing faithful to the aeronautical DNA, a military-grain calf leather strap or a nylon NATO is ideal. For formal occasions, a vegetable-tanned alligator strap with a midnight blue or slate grey patina brings out the Chronomat's dual character. Rubber with a chevron texture is preferable for aquatic and intensive daily use.

The strap is removed using a spring bar tool. Insert the tip of the tool into the lateral slot of the spring bar, compress the spring and release the strap from the lug. The operation requires no specialist watchmaking skills, though care should be taken to avoid scratching the case. Standard 22mm spring bars are widely available.

Yes. The 22mm lug width is among the most common in the aftermarket. MilanoStraps offers a selection of handcrafted compatible straps — in leather, NATO, rubber and technical materials — made to order or ready to ship. Every strap is supplied with spring bars specified for the 22mm width.

Longevity depends on the material, frequency of wear and care. A quality calf leather strap has an average lifespan of 12–24 months with daily use. A well-maintained vegetable-tanned alligator strap can last over 3–5 years. It is advisable to avoid prolonged exposure to water and perspiration, apply leather conditioner every three months, and rotate straps if the watch is worn every day.