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
ReferenceIB011012.A698.433X
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
CaseMother of Pearl | Rose 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.A698.433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012.A698.433X, seen from the bench

The Chronomat B01 44 is equipped with the automatic Breitling B01 caliber with column-wheel chronograph function and chronometer certification. The watch features a 44mm case with 22mm lugs and offers hour, minute, small seconds and date indications. The B01 movement provides chronograph functions with a column-wheel system for precise button operation.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012.A698.433X?

The Breitling Chronomat B01 44 IB011012.A698.433X has a lug width of 22 mm. This measurement is taken with a digital calliper between the two lugs at their narrowest point, flush with the case. This is the figure to use when ordering any compatible aftermarket strap.

What is the best strap for the Breitling Chronomat B01 44 with mother-of-pearl dial and rose gold bicolour case?

For this reference, an alligator strap in vegetable-tanned leather in cognac or honey brown tones is the most coherent choice for the rose gold and steel bicolour case. It enhances the warm reflections of the mother-of-pearl dial without overpowering its luminosity. Alternatively, smooth Tuscan calfskin develops a natural patina over time that harmonises with the case's ageing character.

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

Changing the strap on the Chronomat B01 44 requires a fine-tipped spring bar tool inserted into the lug slot where the spring bar sits. Pressing the spring bar inward releases the strap laterally. No specialist tools are required, but care should be taken not to scratch the case surfaces — particularly the rose gold-finished components.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 IB011012.A698.433X?

Yes. Any strap with a standard 22 mm attachment and spring bars included is compatible with the Chronomat B01 44. Milano Straps offers a curated selection of handcrafted 22 mm straps in alligator, calfskin, NATO and rubber, with reinforced stitching and integrated keepers, designed to visually balance the 44 mm case.

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

Longevity depends on leather quality, care routine and frequency of use. A quality alligator or vegetable-tanned calfskin strap, regularly conditioned with leather cream and kept away from prolonged water exposure, can last between three and five years. Tuscan leather develops a patina that improves its appearance over time, unlike lacquered leathers which tend to crack and peel.

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