Strap for Chronomat 44 GMT Stainless Steel / Rose Gold / Metallica Blue / Croco

The Breitling Chronomat B01 44 CB042012.C858.737P has a lug width of 22 mm. This measurement is consistent across the entire Chronomat B01 44 family and allows the fitting of any 22mm aftermarket strap, whether quick-release or standard spring bar.

For a two-tone rose gold and steel case such as the CB042012.C858.737P, the most complementary materials are vegetable-tanned alligator leather in cognac or burgundy — which echo the warm tones of the rose gold — or a grained calf leather strap for a sportier aesthetic. NATO nylon straps are ideal for intensive daily use owing to their mechanical resilience.

Strap replacement on the Chronomat B01 44 requires a fine-tipped spring bar tool inserted into the small hole on each lug. Apply gentle lever pressure to compress the spring bar and slide the strap free. The operation can be completed in minutes without professional equipment, provided a dedicated spring bar tool is used. It is advisable to protect the case surfaces with a soft cloth during the procedure.

Yes. Any strap with a 22mm attachment is dimensionally compatible with the Chronomat B01 44. Milano Straps produces handcrafted 22mm straps in calf leather, alligator, shell cordovan and NATO fabric, all featuring reinforced stitching and steel buckles or deployant clasps. The standard 120/75mm length suits most male wrists.

A quality vegetable-tanned leather strap, worn with care and rotated regularly with other straps, typically lasts between 2 and 4 years before structural wear becomes apparent at the stitching or lugs. Exposure to perspiration, water and UV radiation accelerates deterioration. Milano Straps provides an 18-month warranty against manufacturing defects on all handcrafted straps.