Strap for Chronomat 44 Stainless Steel / Carbon / Japan Special Edition

The lug width of the Breitling Chronomat B01 44, reference AB011012/BE69/388A, is 22 mm. This measurement is taken with a digital calliper at the inner distance between the two lugs, at the point where the strap attaches to the case.

For the Chronomat B01 44 with a 22 mm lug width, an alligator strap with vegetable tanning is the most refined choice for formal occasions, while semi-matte calfskin is ideal for everyday wear. Technical nylon NATO and vulcanised rubber are recommended for sporting contexts. A brushed steel deployant clasp elevates any combination.

The strap on the Chronomat B01 44 is changed using a fine-tipped springbar tool. Insert the tool into the gap between the lug and the strap, compress the springbar and slide the strap out laterally. No case disassembly is required. It is advisable to work on a soft surface to avoid scratching the case.

Yes, aftermarket straps with a 22 mm lug width and standard tapering are fully compatible with the Chronomat B01 44. Milano Straps offers a curated selection of handcrafted 22 mm straps in various materials and finishes, made with the same artisanal care as original straps.

The lifespan of a leather strap depends on the quality of the hide, maintenance and frequency of use. A top-grade alligator or calfskin strap with vegetable tanning, regularly conditioned with leather cream and rotated with other straps, can last between 3 and 7 years while developing an increasingly characterful patina. Prolonged exposure to water and perspiration accelerates deterioration; in such cases, alternating with a NATO or rubber strap is advisable.