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
ReferenceIB011012Q576375C
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 IB011012Q576375C

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012Q576375C, seen from the bench

The Chronomat B01 44 features the in-house B01 caliber with chronograph function and column wheel, certified chronometer. The case has a diameter of 44mm with 22mm lugs. The movement offers indication of hours, minutes, small seconds, and date, in addition to chronograph functions.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012Q576375C?

The lug width of the Breitling Chronomat B01 44 (ref. IB011012Q576375C) is 22mm. This measurement refers to the internal distance between the two lower lugs of the case and determines compatibility with any aftermarket strap. It is advisable to verify with a calliper prior to purchase.

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

For the steel and rose gold two-tone version, the most suitable materials are vegetable-tanned alligator leather in tobacco or cognac tones, which complement the warm reflections of the rose gold, and shell cordovan for a dense grain and deep patina. For a more sporting interpretation, vulcanised rubber retains the technical character of the chronograph. All straps must feature a 22mm attachment width.

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

To replace the strap, a springbar tool with a fine tip is required. Insert the tip into the lateral slot of the lug and compress the springbar on both sides until it releases from the lug hole. Care must be taken to avoid scratching the case: it is advisable to protect the lug area with Mylar tape during the procedure.

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

Yes: any strap with a 22mm attachment is technically compatible with the Breitling Chronomat B01 44. milanostraps.it offers a selection of handcrafted straps in alligator, calfskin, shell cordovan, NATO fabric and rubber, specifically sized for this lug width. It is also important to verify the overall length (typically 115/75mm) and the preferred clasp type.

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, frequency of use and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, with regular rotation, has an average lifespan of 2–4 years. Shell cordovan straps, owing to their dense fibrous structure, tend to last longer whilst developing a distinctive patina. Proper conditioning with a leather cream significantly extends the life of the strap.

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