Strap for Chronomat 41

The lug width of the Breitling Chronomat B01 41 AB0140AAC830718P is 20 mm. This measurement is taken internally between the two lugs using a digital calliper and determines compatibility with any aftermarket or replacement strap.

For the steel Chronomat B01 41, an alligator strap in black or tobacco brown provides a formal register whilst preserving the model's sporting character. Vegetable-tanned calfskin develops a personal patina over time, whilst NATO nylon or vulcanised rubber are ideal for active use. All straps must feature a 20 mm attachment width.

To replace the strap on the Chronomat B01 41, use a spring bar tool or a fine flat-blade screwdriver to release the spring bars from the lugs. Work on a soft surface to avoid scratching the case. Alternatively, a watchmaker or the Casati Milano atelier can perform the fitting without risk.

Yes. Any strap with a 20 mm attachment width and a straight or slightly tapered end is compatible with the Chronomat B01 41. Milano Straps offers a curated selection of 20 mm leather, NATO and rubber straps suited to this reference, with bespoke handcrafted options available through Casati Milano.

Longevity depends on material and usage. A quality alligator strap, with regular wear and proper care, typically lasts 2 to 4 years. Vegetable-tanned calfskin has a similar lifespan and develops a distinctive patina. Casati Milano straps carry an 18-month guarantee against manufacturing defects.