Strap for Chronomat 44 Stainless Steel / Rose Gold / Black - Roman / Japan Special Edition

The lug width of the Breitling Chronomat B01 44 IB011012/B957/388C is 22mm, measured internally between the two lugs close to the case. This dimension has remained consistent across Chronomat generations and is compatible with a wide range of aftermarket 22mm straps.

For the two-tone steel and rose gold configuration, the most fitting options are alligator straps in vegetable-tanned leather in cognac or dark brown tones, which complement the warm reflections of the rose gold. Alternatively, a matte black box-calf strap creates a sharp, elegant contrast. For sporting or marine use, vulcanised rubber is the most practical and appropriate choice.

The strap on the Chronomat B01 44 is replaced via the spring bars fitted in the 22mm lugs. It is advisable to use a professional dual-tip springbar tool to avoid scratching the lugs. Given the tapered geometry of the lugs, it is preferable to have the strap changed by a watchmaker or to follow the detailed instructions provided by Milano Straps with each strap.

Yes. All straps with a 22mm attachment and standard length (75/115mm or 75/120mm for larger wrists) are physically compatible. For the best result with the curved lugs of the Chronomat B01 44, straps with slightly flexible ends or those cut specifically for Breitling cases are recommended. Milano Straps offers handcrafted straps made to measure for this reference.

The lifespan of a leather strap depends on the material and usage. A quality vegetable-tanned alligator strap, with moderate daily wear, typically lasts 3 to 5 years while retaining its structure and patina. Cordovan, being denser and more resilient, can exceed 5 years. Prolonged exposure to water, heavy perspiration and direct sunlight accelerates deterioration: it is advisable to rotate straps and store them away from heat sources.