Strap for Chronomat 44 Stainless Steel / White - Roman / Bracelet

The lug width of the Breitling Chronomat B01 44 AB011011/A690/375A is 22mm. This measurement is consistent across the entire Chronomat B01 44 family and can be confirmed by measuring the inner distance between the lugs with a calliper after removing the original strap via the spring bar.

The most suitable materials for the Chronomat B01 44 are Louisiane alligator leather with symmetrical grain for formal occasions, vegetable-tanned Tuscan calf leather for daily wear with natural patina development, and vulcanised rubber for sporting or maritime use. A brushed steel deployant clasp is the most coherent choice given the technical aesthetic of this watch.

To replace the strap on the Chronomat B01 44, use a flat-tipped spring bar tool or a dedicated lug lever. Insert the tip into the small notch on the spring bar inside the lug, compress the bar inward and release the strap. The operation requires no professional tools but should be performed carefully to avoid scratching the satin-finished lugs.

Yes. Any strap with a 22mm attachment and sufficient tail length for the Chronomat's deep lugs is compatible. Milano Straps crafts bespoke straps dimensioned specifically for this family, with straight or tapered ends and calibrated thickness to suit the curvature of the caseback without placing undue stress on the leather.

Longevity depends on the material and conditions of use. A vegetable-tanned calf strap under moderate daily use typically lasts 18 to 36 months; high-quality alligator can exceed five years if kept away from prolonged exposure to water or perspiration. Milano Straps products carry an 18-month guarantee against manufacturing defects. Periodic strap replacement is a normal part of watch maintenance.