Breitling · Chronomat B01 42

Strap for Chronomat B01 42 NFL Jacksonville Jaguars / Rouleaux

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceAB01342B1L3A1
FamilyChronomat B01 42
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2024
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Chronomat B01 42 AB01342B1L3A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 42 AB01342B1L3A1, seen from the bench

The Chronomat B01 42 is powered by the automatic B01 Caliber with column-wheel chronograph function and chronometer certification. The 42mm case features 22mm lugs and integrates hour, minute, small second and date functions. The movement offers chronograph indication through a column-wheel mechanism with chronometer precision standard.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 42 AB01342B1L3A1?

The lug width of the Breitling Chronomat B01 42, reference AB01342B1L3A1, is 22mm. This measurement is taken internally between the two lugs at their narrowest point, closest to the case. Any strap with a 22mm attachment width is compatible with this reference.

What is the best strap for the Breitling Chronomat B01 42?

For the steel Chronomat B01 42, the most appropriate straps are alligator for formal occasions, vegetable-tanned calf leather for everyday versatility, and vulcanised rubber for intensive sporting use. A perforated rally-style leather strap is particularly consistent with the Chronomat's motorsport heritage. The colour choice should be guided by the dial colour.

How do I change the strap on a Breitling Chronomat B01 42?

To replace the strap on the Chronomat B01 42, use a fine-tipped springbar tool. Insert the tool into the lug hole, compress the springbar and slide the strap free. Care must be taken to avoid scratching the case or lugs. If in doubt, it is advisable to consult a watchmaker or a specialist atelier.

Are there aftermarket straps compatible with the Breitling Chronomat B01 42?

Yes, the aftermarket offers a wide selection of 22mm straps compatible with the Breitling Chronomat B01 42. Milano Straps stocks handcrafted leather, alligator, calf and technical material straps made specifically for 22mm lugs. It is important to verify that the strap end geometry is compatible with the Chronomat's lug profile.

How long does a leather strap last on a Breitling Chronomat B01 42?

The lifespan of a leather strap depends on the quality of the tanning, the leather thickness and frequency of use. A quality vegetable-tanned calf strap, with regular care and rotation between several straps, can last between 2 and 5 years while developing an attractive patina. High-quality alligator straps can exceed 5 years with correct use and maintenance. Milano Straps offers an 18-month guarantee against manufacturing defects.

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