Strap for Chronomat 44

The lug width of the Breitling Chronomat B01 44 JB011011G688433X is 22mm. To verify this measurement, use a digital calliper to measure the internal gap between the two lugs after removing the original strap.

For an 18-carat white gold case measuring 44mm in diameter, a polished alligator belly strap is the most aesthetically coherent choice. Shell cordovan develops a distinctive patina over time that complements the restrained refinement of white gold. For sporting use, high-grade vulcanised rubber is the most practical option.

To replace the strap on the Chronomat B01 44, a fine-tipped spring bar tool is sufficient. The case lugs feature a slight downward curve: it is important to select an aftermarket strap that accommodates this profile to avoid stress on the lugs. The operation can be completed independently in approximately two minutes without specialist tools.

Yes. Any strap with a 22mm attachment width is technically compatible with the Chronomat B01 44. Milano Straps offers a curated selection of handcrafted leather, rubber and fabric straps specific to the 22mm lug width, available both as standard pieces and as fully bespoke commissions through the Casati Milano atelier.

The longevity of a leather strap depends on the material and care routine. A vegetable-tanned alligator strap, kept away from water and excessive perspiration and treated periodically with a conditioning cream, typically lasts between two and five years with daily wear. Shell cordovan, owing to its dense fibre structure, is among the most durable materials and can exceed five years whilst retaining structural integrity and patina. Milano Straps provides an 18-month warranty on manufacturing defects.