Breitling · Chronomat B01 42

Strap for Chronomat B01 42 NFL Los Angeles Chargers / 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
ReferenceAB01342B1C8A1
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 AB01342B1C8A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 42 AB01342B1C8A1, seen from the bench

The Chronomat B01 42 is powered by the Breitling B01 automatic caliber with column-wheel chronograph function and chronometer certification. The movement displays hours, minutes, small seconds, and date. 22mm lug width for the strap.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 42 AB01342B1C8A1?

The lug width of the Breitling Chronomat B01 42 AB01342B1C8A1 is 22 mm. This measurement is taken with a digital calliper between the two case lugs at the strap attachment point. Respecting this dimension is essential to ensure a precise fit with no lateral play.

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

For the Chronomat B01 42, the most recommended materials are vegetable-tanned alligator leather for an elegant pairing, box-calf leather for everyday sporting use, shell cordovan for those seeking a noble patina over time, and vulcanised rubber for humid environments or active use. The correct width is 22 mm; a steel deployant clasp is recommended for optimal wearing comfort.

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

The strap on the Chronomat B01 42 is secured to the case via standard 22 mm springbars. To replace it, insert a springbar tool between the case lug and the end of the springbar, compress the bar and slide the strap free. The operation requires no work on the case or movement and is fully reversible when performed carefully.

Are there aftermarket straps compatible with the Breitling Chronomat B01 42 AB01342B1C8A1?

Yes, the Breitling Chronomat B01 42 accepts any aftermarket strap measuring 22 mm with standard springbars. Milano Straps offers a selection of handcrafted straps in 22 mm width, made from carefully selected leathers and fully compatible with reference AB01342B1C8A1. The quality of materials and artisan construction deliver a result that surpasses the stock strap both aesthetically and functionally.

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

The lifespan of a leather strap depends on the material, frequency of use and level of care. A quality leather strap — calf, alligator or shell cordovan — worn daily under moderate conditions typically lasts between 18 and 36 months. Avoiding prolonged exposure to water, excessive perspiration and direct sunlight significantly extends the strap's life. Milano Straps straps carry 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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only