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
ReferenceIB011012Q576433X
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 IB011012Q576433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012Q576433X, seen from the bench

The Chronomat B01 44 is equipped with the in-house automatic B01 caliber with column-wheel chronograph function and chronometer certification. The watch features hour, minute, small second, date and chronograph functions. 44mm case with 22mm lugs.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012Q576433X?

The lug width of the Breitling Chronomat B01 44 (ref. IB011012Q576433X) is 22mm. This measurement should be taken with a digital calliper between the two lugs, flush against the case, and is the essential parameter for selecting a compatible aftermarket strap.

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

For the Chronomat B01 44 in rose gold and steel, a glossy alligator strap in cognac or bourbon tones is recommended to complement the two-tone precious metal aesthetic. A grained calf leather strap in black or dark anthracite enhances the instrument-grade character of the B01 movement. Shell cordovan is ideal for those seeking a natural patina that develops over time.

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

The strap on the Chronomat B01 44 is removed using a fine-tipped springbar tool. The 22mm springbars must be compressed laterally to release the strap from the lugs. It is advisable to work on a soft surface and proceed carefully to avoid scratching the lug finishing.

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

Yes, aftermarket straps with a 22mm lug width are compatible with the Breitling Chronomat B01 44. It is important to ensure the strap end is straight-cut or slightly curved to suit the lug geometry. Milanostraps.it offers a curated selection of handcrafted 22mm straps compatible with this reference.

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

The lifespan of a leather strap depends on the material, maintenance, and intensity of use. A quality alligator or shell cordovan strap, properly cared for and kept away from prolonged exposure to water and perspiration, can last between 3 and 5 years. Vegetable-tanned leather develops a characteristic patina but requires periodic water-resistant treatment. Casati Milano straps come with an 18-month guarantee against manufacturing defects.

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