Breitling · Chronomat B01 44

Strap for Chronomat 44

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

Lug width22 mm
Case diameter44 mm
ReferenceIB011012B957375A
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
CaseRose Gold, Stainless 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 44 IB011012B957375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012B957375A, seen from the bench

The Chronomat B01 44 mounts the Breitling B01 automatic caliber with column-wheel chronograph function and chronometer certification. The watch features indications of hours, minutes, small seconds and date, with chronograph function. The case has 22mm lugs.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012B957375A?

The Breitling Chronomat B01 44 IB011012B957375A features 22mm lugs. This measurement is standard across the Chronomat 44 family and allows fitting any 22mm strap, whether an original Breitling piece or an aftermarket artisan option.

What is the best strap for the Breitling Chronomat B01 44 IB011012B957375A?

For the two-tone steel and rose gold IB011012B957375A, a dark brown or cognac alligator strap with contrast stitching complements the rider tabs bezel and echoes the warm tone of the rose gold. A perforated rally strap in honey calf leather is an equally valid choice, preserving the chronograph's sporting character without overloading the dial.

How do you change the strap on the Breitling Chronomat B01 44?

Strap replacement on the Chronomat B01 44 is carried out using standard 22mm spring bars. Using a springbar tool, compress the bars and slide the strap free from the lugs. The operation takes approximately two minutes and requires no specialised watchmaking skill, provided you work on a soft surface to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 IB011012B957375A?

Yes. The 22mm lug width is one of the most common in the sport-luxury chronograph segment, and the aftermarket offers extensive choice. Milano Straps produces handcrafted straps in vegetable-tanned leather, alligator and calf, all compatible with the Chronomat B01 44 IB011012B957375A, with craftsmanship equal to or exceeding OEM options.

How long does a leather strap last on a Breitling Chronomat B01 44?

The lifespan of a leather strap depends on materials, tanning method and daily use. A quality alligator or calf strap, vegetable-tanned and hand-finished, worn regularly on a 44mm chronograph typically lasts between two and four years. Humid or sport-oriented environments accelerate wear; in such cases, alternating with a rubber or NATO strap is advisable.

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