Strap for Chronomat 44

The lug width of the Breitling Chronomat B01 44 AB01154GBD13101W is 22mm. This is the internal distance between the two lugs at their narrowest point, measurable with a digital calliper. Any strap with a 22mm attachment width will be compatible with this reference.

The choice depends on intended use. For a sport-elegant register, perforated racing-style calf leather is the most coherent with the Chronomat's aviation heritage. For formal occasions, hornback alligator with a pronounced grain complements the bezel texture. Vulcanised rubber is the technical solution for intensive or marine use.

The strap on the Chronomat B01 44 is secured by standard 22mm spring bars. Using a spring bar tool or a thin flat-blade screwdriver, compress the spring bar laterally to release it from the lug. No professional equipment is required, though it is advisable to work on a soft surface to avoid scratching the case.

Yes. Any strap measuring 22mm at the attachment end with standard spring bars is compatible with the Chronomat B01 44. Milano Straps offers a curated selection of handcrafted straps in leather, rubber and nylon for 22mm lug width, with finishes selected to complement the Chronomat's stainless steel case.

Longevity depends on leather type, care and frequency of use. A quality calf leather strap worn daily typically lasts 18 to 24 months. Alligator in vegetable tanning, with proper maintenance — nourishing cream every 2 to 3 months and avoidance of prolonged water contact — can exceed 3 years. Replace the strap when the keeper loses tension or the leather shows structural deterioration near the buckle.