Strap for Chronomat 41

The lug width of the Breitling Chronomat B01 41 AB014012F554728P is 20mm. This measurement is taken with a digital calliper positioned between the inner walls of the lugs, perpendicular to the case axis. All 20mm straps in the Milano Straps catalogue are fully compatible with this reference.

For the Chronomat B01 41, the most suitable materials are polished alligator for formal occasions, shell cordovan for daily wear thanks to its developing patina, and technical rubber for sporting or marine environments. With a black dial, a black polished alligator or a cognac shell cordovan deliver the strongest aesthetic result.

To replace the strap, you will need an appropriately sized spring bar tool with a fine tip. Compress the spring bar by inserting the tool into the lateral slot at the lug, remove the original strap, and fit the new 20mm strap. It is advisable to use a soft cloth or protective tape over the lugs to avoid scratching the steel surfaces during the operation.

Yes. Any strap with a straight 20mm attachment (not curved) is compatible with the Chronomat B01 41. Milano Straps offers an extensive selection of handcrafted 20mm straps in various materials and finishes, manufactured to ±0.3mm tolerances to ensure a precise fit without stress on the lugs.

The lifespan of a leather strap depends on the material and maintenance. A quality shell cordovan strap, with moderate daily use and regular conditioning (colourless cream every 3–4 months), will last between 3 and 5 years whilst retaining an excellent appearance. A vegetable-tanned calf strap typically lasts 2 to 4 years. Alligator, if kept away from excessive water or perspiration, can exceed 5 years. All Casati Milano straps carry an 18-month guarantee against manufacturing defects.