Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Silver / Calf

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.G684.433X
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011
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.G684.433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011012.G684.433X, seen from the bench

The Chronomat B01 44 features the in-house B01 automatic caliber with chronograph function and column-wheel. The movement offers hour, minute, small seconds, date and certified chronometer indication. The case has 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011012.G684.433X?

The lug width of the Breitling Chronomat B01 44 reference AB011012.G684.433X is 22 mm. This measurement is taken with a calliper between the two lugs at the innermost point of strap attachment. It is the essential parameter for selecting any compatible replacement strap.

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

For the stainless steel Chronomat B01 44, the most suitable straps are vegetable-tanned calfskin or Louisiana alligator for a more refined look, or vulcanised rubber or ballistic nylon NATO for those who favour the model's instrumental, sporting character. The correct width is 22 mm.

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

To replace the strap on the Chronomat B01 44, remove the 22 mm spring bars seated in the lugs using a dedicated spring bar tool. Care should be taken to avoid scratching the steel lugs: protect the case with a soft cloth and work on a stable surface. No watchmaker's intervention is required for this procedure.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012.G684.433X?

Yes. Any strap with a lug width of 22 mm is technically compatible with the Breitling Chronomat B01 44 AB011012.G684.433X. Milano Straps offers a curated selection of handcrafted straps in leather, alligator, shell cordovan, rubber and NATO, all available in 22 mm width, with or without a deployant clasp.

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

The lifespan of a leather strap depends on the type of hide, frequency of use and exposure to perspiration and moisture. A quality vegetable-tanned calfskin strap, with moderate daily wear, typically lasts 2 to 4 years. Shell cordovan and alligator, owing to the density of their fibres, tend to last longer, developing a distinctive patina over time. Milano Straps guarantees its straps for 18 months 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