Strap for Chronomat 44 Stainless Steel / Blue / Calf / Pin

The lug width of the Breitling Chronomat B01 44 (ref. AB011012/C788/105X/A20BA.1) is 22mm. This measurement is taken between the two lugs of the case where the strap attaches, and is compatible with any standard 22mm watch strap.

For the stainless steel Chronomat B01 44, the most suitable materials are grained calf leather for a sports-elegant look, padded alligator for formal occasions, and rubber for daily wear. A perforated rally strap in Havana Brown or Black enhances the watch's aeronautical character without compromising its technical identity.

Strap replacement requires a spring bar tool to remove the spring bars from the 22mm lugs. This is a straightforward operation that can be performed independently with the correct tools, or entrusted to a watchmaker or the Casati Milano atelier for a precise, risk-free swap.

Yes. Any strap with a 22mm attachment is compatible with the Breitling Chronomat B01 44. Milano Straps offers a selection of handcrafted 22mm straps — in leather, alligator, rubber and NATO — made to measure or available ready-to-ship online, with stainless steel or PVD buckle or deployant clasp.

Longevity depends on the type of leather and frequency of use. A quality calf leather strap with vegetable tanning and a refined finish typically lasts 18–24 months with regular wear. Alligator straps, owing to the density of the hide and the structure of the scales, can exceed three years. Casati Milano offers an 18-month guarantee against manufacturing defects.