Strap for Chronomat 44

The lug width of the Breitling Chronomat B01 44 IB011012Q567433X is 22 mm. This measurement refers to the internal distance between the two lugs at the strap attachment point. We recommend verifying this with a digital calliper to ensure precise compatibility with any replacement strap.

For the bi-material stainless steel and rose gold version, the most suitable options are alligator straps in tobacco or cognac tones, which complement the warm reflections of the rose gold bezel. Alternatively, Tuscan calf leather with traditional vegetable tanning develops a distinctive patina over time. For sports use, vulcanised rubber offers water resistance while maintaining an aesthetic coherent with Breitling's design language.

The strap on the Chronomat B01 44 is removed using a fine-tipped spring bar tool inserted into the lateral hole of the lug to compress the spring bar. Care must be taken to avoid scratching the case: fabric protectors on the lugs are recommended. The new 22 mm strap is fitted by snapping the spring bar into the original seats. If in doubt, it is advisable to consult a watchmaker or the Casati Milano service.

Yes, the Chronomat B01 44 features a standard 22 mm lug attachment that accepts any aftermarket strap of the same width. Milano Straps offers handcrafted straps in leather, alligator, vegetable-tanned calf, and rubber, all supplied with replacement spring bars. Compatibility is guaranteed by the lug width, regardless of the chosen clasp type — pin buckle or deployant clasp.

The lifespan of a leather strap depends on the quality of the hide, the tanning process, and daily use. A high-grade vegetable-tanned calf strap, properly cared for with nourishing products and rotated with other straps, can last between 2 and 5 years. Alligator leather, being more compact and less porous, tends to be more resistant to moisture. Milano Straps offers an 18-month guarantee against manufacturing defects on all Casati Milano straps.