Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Blue / Rubber

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
ReferenceAB011012.C788.158S
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011
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 44 AB011012.C788.158S

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011012.C788.158S, seen from the bench

The Breitling Chronomat B01 44 AB011012.C788.158S is a professional chronograph descending from a 1984 project developed with the Frecce Tricolori aerobatic team. The stainless steel AISI 316L case measures 44mm in diameter and houses the in-house B01 caliber, an automatic mechanical chronograph movement with column wheel and vertical clutch, COSC-certified as a chronometer. The blue dial features applied indices with Super-LumiNova treatment, black counters, and date window at 6 o'clock integrated into the continuous seconds subdial. The lug width is 22mm.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011012.C788.158S?

The lug width of the Breitling Chronomat B01 44 AB011012.C788.158S is 22mm. This measurement is fixed across all examples of the model and determines compatibility with aftermarket straps. For a direct verification, a digital calliper positioned between the two lugs with the watch lying flat is recommended.

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

For the Chronomat B01 44, the most suitable materials are polished belly alligator for formal contexts, vegetable-tanned calf leather with a racing perforation for an aesthetic faithful to the motorsport DNA, and structured rubber for sporting or nautical use. The correct width is 22mm. A brushed steel buckle or deployant clasp ensures visual coherence with the original case finish.

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

To replace the strap on the Chronomat B01 44, a fine-tipped spring bar tool is required. The 22mm spring bars are released by applying pressure to the notched end that hooks into the lug, first on one side then the other. It is advisable to work on a soft surface to protect the case from scratches. If the watch is fitted with an integrated bracelet, replacement requires specific tools or the assistance of a watchmaker.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012.C788.158S?

Yes, there are numerous aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012.C788.158S, provided they conform to the 22mm lug width. Milano Straps offers solutions in alligator, vegetable-tanned calf leather, rubber and NATO nylon, all handcrafted and compatible with the model's standard spring bars.

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

The lifespan of a leather strap depends on leather quality, daily use, and exposure to perspiration and environmental factors. A high-quality vegetable-tanned calf strap, regularly treated with a nourishing cream, can last between two and four years with daily wear. Superior-grade alligator can easily reach four to six years. Avoiding prolonged water immersion will significantly extend the strap's service life.

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