Breitling · Chronomat B01 42

Strap for Chronomat B01 42 Six Nations / France

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
ReferenceAB0134A81C1A1
FamilyChronomat B01 42
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2023
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 AB0134A81C1A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 42 AB0134A81C1A1, seen from the bench

The Chronomat B01 42 represents the modern evolution of the Breitling Chronomat line. It is powered by the in-house manufactured B01 automatic caliber with column-wheel chronograph and chronometer certification. The 42mm case features 22mm lugs and offers hours, minutes, small seconds, date, and chronograph functions.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 42 AB0134A81C1A1?

The lug width of the Breitling Chronomat B01 42 AB0134A81C1A1 is 22mm. This measurement corresponds to the internal distance between the two lugs and is the essential specification when selecting a compatible aftermarket strap. It is always advisable to verify the measurement with a calliper before purchasing.

What is the best strap for the Breitling Chronomat B01 42 AB0134A81C1A1?

For the Chronomat B01 42 AB0134A81C1A1, the most coherent choices given its technical and sporting character are: matte alligator with square scales for formal settings, vegetable-tanned calfskin in tobacco brown for everyday wear, vulcanised rubber for aquatic environments, and shell cordovan for those seeking longevity and a slim profile. A taper of 22/20mm or 22/18mm is recommended.

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

The strap on the Breitling Chronomat B01 42 is removed using a flat-tipped or spring bar tool. The 22mm spring bars are compressed inward towards the lugs and the strap releases without force. The operation takes approximately two minutes per side. It is advisable to rest the case on a soft cloth to protect the bezel and sapphire crystal.

Are there aftermarket straps compatible with the Breitling Chronomat B01 42 AB0134A81C1A1?

Yes. Any strap with a 22mm lug width and standard spring bars is compatible with the Breitling Chronomat B01 42 AB0134A81C1A1. Milanostraps.it offers a curated selection of handcrafted 22mm straps in leather, rubber and nylon, made in Italy, fully compatible with this reference without the need for adapters.

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

Longevity depends on the type of leather, maintenance and intensity of use. A vegetable-tanned calfskin strap typically lasts 18 to 36 months with regular wear. A shell cordovan strap often exceeds five years due to the density of the hide fibres. Prolonged exposure to water and perspiration significantly reduces the service life of any leather strap; for intensive sporting use, vulcanised rubber is recommended.

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