Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Rose Gold / Blue

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/C790
FamilyChronomat B01 44
MovementBreitling caliber 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 IB011012/C790

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012/C790, seen from the bench

The Breitling Chronomat B01 44 (ref. IB011012/C790) was created in 1984 as an operational instrument for the Frecce Tricolori and Patrouille de France. This two-tone model combines stainless steel with rose gold accents, featuring the iconic rider tabs on the rotating bezel. The 43.5 mm case houses the in-house Breitling B01 movement, COSC-certified chronometer with column wheel, offering ±4 seconds per day precision. Water-resistant to 200 meters, it features a unidirectional bezel with tachymetric scale. Lug width: 22 mm.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012/C790?

The lug width of the Breitling Chronomat B01 44 IB011012/C790 is 22 mm. This measurement is taken between the two lugs using a digital calliper or a millimetre ruler, held flush against the caseback. It is the essential parameter for selecting any compatible aftermarket strap.

What is the best strap for the Breitling Chronomat B01 44 IB011012/C790?

For the Chronomat B01 44 IB011012/C790 in Rose Gold and steel, a matte alligator strap in cognac or chocolate brown best complements the warmth of the rose gold while respecting the robustness of the case. A Tuscan vegetable-tanned calf strap in tobacco brown offers a sportier character with a patina that improves over time. For intensive daily wear, vulcanised rubber is the functionally correct choice.

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

The Chronomat B01 44 uses a standard 22 mm spring bar system. To replace the strap, insert a flat-blade screwdriver or a dedicated springbar tool into the lug slot, compress the spring bar inward, and slide the strap free. The operation is fully reversible and does not require a watchmaker, provided the correct tool is used to avoid scratching the lugs.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 IB011012/C790?

Yes. Any strap with a 22 mm lug width and standard spring bars is compatible with the Chronomat B01 44 IB011012/C790. Milano Straps crafts bespoke straps with flat or arched ends tailored to the angled lugs of the Chronomat, available in leather, alligator, NATO webbing, and rubber. It is advisable to ensure the strap end thickness does not exceed 4 mm for a clean fit between the lugs.

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

The lifespan of a leather strap depends on the quality of the tanning process and conditions of use. A Tuscan vegetable-tanned leather strap, properly maintained with a light leather conditioner every two to three months and allowed to dry naturally after moisture exposure, can last between three and six years while developing a distinctive personal patina. High-grade alligator straps typically last longer. Frequent exposure to perspiration and water significantly shortens service life; in those conditions, rubber or NATO is the more practical choice.

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