Strap for Chronomat 44 Stainless Steel / Diamond / Blackeye Blue / Croco

The lug width of the Breitling Chronomat B01 44 reference AB011053.C789.731P is 22mm. This is a standard measurement for sport chronographs of this case diameter (44mm), and can be verified with a millimetre calliper placed between the two lugs at the innermost point, flush against the case.

The most suitable materials for the Chronomat B01 44 are alligator leather with natural grain for a formal-sport register, vegetable-tanned Tuscan calf leather for those seeking a hide that develops patina over time, and vulcanised rubber for aquatic or intensive sporting use. The correct lug width is 22mm. A brushed steel deployant clasp is recommended to maintain aesthetic coherence with the case.

To replace the strap on the Chronomat B01 44, a fine-tipped spring bar tool is required. Insert the tool into the lug slot, compress the spring bar and slide the strap free. Care should be taken to avoid scratching the steel lugs. If in any doubt, it is advisable to consult a watchmaker or the Casati Milano service.

Yes. Any strap with a 22mm lug width is compatible with the Breitling Chronomat B01 44. On milanostraps.it you will find handcrafted straps in alligator, Tuscan calf, shell cordovan, NATO and rubber, all produced with standard 22mm spring bars and available in various lengths to suit different wrist circumferences.

The lifespan of a leather strap depends on the material and care taken. A vegetable-tanned calf strap, regularly conditioned with a nourishing cream, can last between 2 and 4 years with daily wear. Quality alligator leather, properly tanned, will reach 3 to 5 years. Shell cordovan is among the most durable materials, often exceeding 5 years of use. Milano Straps are covered by an 18-month warranty against manufacturing defects.