Strap for Chronomat B01 42 NFL Chicago Bears / Rouleaux

The lug width of the Breitling Chronomat B01 42, reference AB01342B1C5A1, is 22mm. This measurement is taken with a digital calliper positioned between the two case lugs at the point where the strap inserts. Adhering precisely to this measurement is essential to ensure correct fitting without stressing the lugs.

For the stainless steel Chronomat B01 42, the most suitable materials are alligator leather for formal occasions, vegetable-tanned calf leather for versatile daily wear, and vulcanised rubber for sport or humid environments. A 22mm ballistic nylon NATO strap is also highly coherent with the model's aeronautical heritage. The correct lug width is always 22mm.

To replace the strap on the Chronomat B01 42, use a flat-tipped or forked spring bar tool. Compress the spring bar by inserting the tool tip into the slot on the lug, slide the strap outward, then insert the new one. To avoid scratching the lugs, it is advisable to protect the case with soft masking tape during the operation.

Yes. Any strap with a 22mm lug width is technically compatible with the Breitling Chronomat B01 42, reference AB01342B1C5A1. Milanostraps.it offers a curated selection of handcrafted leather, rubber, and NATO straps made specifically for this size. It is also recommended to verify the strap length against your wrist circumference before ordering.

The lifespan of a leather strap depends on the material and conditions of use. A quality vegetable-tanned calf strap worn daily typically lasts between 18 and 36 months. Alligator leather, being denser and more resistant, can last well over 5 years if maintained with neutral products and kept away from prolonged moisture exposure. Casati Milano straps carry an 18-month guarantee against manufacturing defects.