Breitling · Chronomat B01 42
Strap for Chronomat B01 42 NFL Miami Dolphins
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Chronomat B01 42 AB01342B1L2S1
Selected for the 22 mm lug width · workshop selection
Matte Dark Brown Alligator Strap€195
Matte Black Alligator Strap€195
Matte Dark Gray Alligator Strap€195
Vintage Brown Calfskin Strap — Natural Patina€98
Vintage Olive Green Calf Leather Watch Strap€80
The Chronomat B01 42 AB01342B1L2S1, seen from the bench
Frequently asked questions
What is the lug width of the Breitling Chronomat B01 42 AB01342B1L2S1?
The lug width of the Breitling Chronomat B01 42 AB01342B1L2S1 is 22 mm. This is the standard measurement for this Breitling chronograph family and requires straps with straight ends to ensure a correct fit against the squared lugs of the case.
What is the best strap for the Breitling Chronomat B01 42?
The ideal choice depends on intended use and aesthetic preference. A cross-grain alligator strap enhances the structured dial in a sport-elegant register. Vegetable-tanned calf leather develops a natural patina suited to daily wear. Vulcanised rubber is recommended for aquatic activities, while a nylon NATO strap references the Chronomat's aeronautical heritage. All options must feature a 22 mm lug width with straight ends.
How do you change the strap on a Breitling Chronomat B01 42?
The strap is removed using a spring bar tool inserted into the lateral hole on the case lugs. Care should be taken to avoid scratching the stainless steel surfaces — placing the watch on a soft cushion before operating is strongly advised. The original spring bars can be reused with the new strap provided they remain in good condition.
Are there aftermarket straps compatible with the Chronomat B01 42 AB01342B1L2S1?
Yes. Any strap with a 22 mm lug width and straight ends is technically compatible with the Breitling Chronomat B01 42 AB01342B1L2S1. Milano Straps offers a range of handcrafted straps in various materials — leather, alligator, rubber, NATO — fitted with standard 22 mm spring bars and requiring no modification to the case.
How long does a leather strap last on a Breitling Chronomat B01 42?
Longevity depends on leather quality, care, and frequency of use. A high-quality vegetable-tanned calf leather strap, kept away from prolonged water exposure and conditioned periodically with a neutral balm, can last between 2 and 4 years with daily wear. A high-grade bombé alligator strap, owing to its denser fibre structure, may exceed 5 years with proper maintenance. Milano Straps provides an 18-month guarantee against manufacturing defects on all straps.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
