Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Rose Gold / Black - Roman

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
ReferenceIB011012/B957
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2009
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 IB011012/B957

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012/B957, seen from the bench

The Chronomat B01 44 is powered by the Breitling B01 automatic caliber with column-wheel chronograph function and chronometer certification. The movement offers indication of hours, minutes, small seconds, date and chronograph. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012/B957?

The Breitling Chronomat B01 44 IB011012/B957 features 22 mm lugs. This measurement is consistent across the entire Chronomat B01 44 family and allows the use of aftermarket straps with a 22 mm attachment in leather, rubber, NATO, and other materials.

What is the best strap for the Breitling Chronomat B01 44 IB011012/B957?

For the steel and rose gold version IB011012/B957, the most fitting options are alligator straps with a hornback grain or smooth calf leather in cognac, tobacco, or black tones. The rose gold detail pairs naturally with warm-toned leathers. A striped nylon NATO with a gold thread or a vulcanised rubber strap for sporting use round out the model's versatility.

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

The Chronomat B01 44 strap is secured by standard 22 mm spring bars housed in the case lugs. Using a spring bar tool, compress the pin and slide the strap free. The process takes approximately two minutes and can be performed independently with care, or entrusted to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 IB011012/B957?

Yes. Any strap with a 22 mm attachment and standard spring bars is compatible. MilanoStraps offers a curated selection of handcrafted 22 mm straps made in Italy, available in various materials and finishes, with or without a deployant clasp. You may browse online or commission a bespoke strap at the Casati Milano atelier.

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

Longevity depends on leather type, usage, and care. A quality calf strap worn daily typically lasts 12 to 24 months. A vegetable-tanned alligator strap, treated with neutral wax and kept away from perspiration and water, can last over 3 to 5 years while developing a distinguished patina. MilanoStraps provides an 18-month warranty against manufacturing defects on all handcrafted 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.

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