Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Diamond / Gray Pearl Diamond / Bracelet

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
ReferenceAB0110AA.G686.375A
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 AB0110AA.G686.375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB0110AA.G686.375A, seen from the bench

The Chronomat B01 44 is equipped with Breitling's manufacture B01 caliber with chronograph, hour, minute, small seconds and date functions. The movement is chronometer certified and uses a column-wheel for the chronograph control. The case has 22mm lugs and integrates the technical features typical of the Chronomat collection.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB0110AA.G686.375A?

The lug width of the Breitling Chronomat B01 44 AB0110AA.G686.375A is 22 mm. It is measured with a digital calliper at the inner distance between the two lugs, at the point where the spring bars are inserted. Any strap with a 22 mm attachment is compatible with this reference.

What is the best strap for the Breitling Chronomat B01 44 AB0110AA.G686.375A?

For the Chronomat B01 44, the choice depends on context. A perforated cognac calfskin strap accentuates its racing heritage; a flat-scale vegetable-tanned alligator strap suits more formal settings; vulcanised rubber is the preferred option for sport or humid environments. The 22 mm lug width allows for structured, thicker straps without visual imbalance.

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

To change the strap, the spring bars securing the bracelet or original strap to the lugs must be removed. Use a forked spring bar tool inserted into the lateral slot of the lug to compress the spring bar ends and release the strap. Work on a soft mat to protect the case surfaces. The new 22 mm strap is fitted by reversing the procedure.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB0110AA.G686.375A?

Yes. Any standard 22 mm strap is compatible with the Breitling Chronomat B01 44 AB0110AA.G686.375A, provided the overall length and end profile suit the lug geometry of the Chronomat, which features a slight curvature. Milano Straps offers a range of handcrafted 22 mm straps made to measure from selected leathers.

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 hide, the tanning method and frequency of use. A strap in Italian calfskin or vegetable-tanned alligator, with moderate daily wear, will typically last 18 to 36 months before the fold area shows significant wear. Frequent exposure to perspiration, water or heat accelerates deterioration. For intensive or sporting use, rubber is recommended for its considerably greater durability.

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