Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Onyx Black / Croco Rubber / Folding

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/B967/296S/A20D.4
FamilyChronomat B01 44
MovementBreitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer
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/B967/296S/A20D.4

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011012/B967/296S/A20D.4, seen from the bench

The Chronomat B01 44 features the in-house manufactured B01 caliber with column-wheel chronograph function and chronometer certification. The watch has a 44mm case with 22mm lugs and offers hours, minutes, small seconds and date indication. The automatic movement integrates the chronograph complications with a column-wheel system for precise button operation.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011012/B967/296S/A20D.4?

The lug width of the Breitling Chronomat B01 44 AB011012/B967/296S/A20D.4 is 22mm. This measurement can be verified using a digital calliper positioned between the two lugs at the point where the strap attaches to the case. Any 22mm strap is compatible with this reference.

What is the best strap for the Breitling Chronomat B01 44 AB011012/B967/296S/A20D.4?

The most suitable straps for the Chronomat B01 44 include vegetable-tanned alligator for formal occasions, calf leather for everyday wear, vulcanised rubber for sport and maritime use, and a perforated Rally strap to honour the model's racing heritage. The correct width is 22mm tapering to 20mm at the buckle.

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

To change the strap on the Chronomat B01 44, use a spring bar tool — either a lever or fork type. The spring bars are located within the lugs of the case. Work on a soft surface to avoid scratching the case. Alternatively, any watchmaker or the Casati Milano atelier can carry out the operation in a matter of minutes.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012/B967/296S/A20D.4?

Yes. Any strap with a standard 22mm lug width is compatible with the Breitling Chronomat B01 44 AB011012/B967/296S/A20D.4. Milano Straps offers handcrafted straps in various leathers and materials, available either ready to ship or made to order, with a steel buckle or deployant clasp.

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

The longevity of a leather strap depends on the type of leather, frequency of use, and care. A quality vegetable-tanned alligator strap, rotated regularly and kept away from excessive moisture and perspiration, can last between three and six years while developing a fine patina. Calf leather softens more quickly but acquires a distinctive character over time. Milano Straps provides an 18-month warranty 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