Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Antarctica White / 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.A690.433X
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011 - 2015
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.A690.433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011012.A690.433X, seen from the bench

The Chronomat B01 44 is powered by the in-house B01 automatic caliber with column-wheel chronograph function and chronometer certification. The case features a diameter of 44mm with 22mm lugs. The movement provides indication of hours, minutes, small seconds, date, and chronograph.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011012.A690.433X?

The lug width of the Breitling Chronomat B01 44 AB011012.A690.433X is 22mm. This measurement should be taken directly between the lugs using a millimetre calliper at the narrowest point near the case, to ensure accurate strap fitting and correct installation of the spring bars.

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

The most suitable straps for the Chronomat B01 44 are vegetable-tanned calfskin with a bombed grain for everyday elegant wear, alligator leather for formal occasions, or vulcanised rubber for intensive sporting use. Ballistic nylon NATO straps are consistent with the model's aeronautical heritage. The 22mm lug width is well supported across all these strap categories.

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

To replace the strap on the Breitling Chronomat B01 44, a flat-tipped spring bar tool is required. Insert the tool into the lateral hole of the lug, compress the spring bar and slide the strap out. Care must be taken to avoid scratching the steel lugs. If in doubt, it is advisable to consult a watchmaker or the Casati Milano service.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012.A690.433X?

Yes, there are numerous aftermarket straps compatible with the Breitling Chronomat B01 44 at 22mm lug width. Milanostraps.it offers artisan straps in leather, alligator, NATO and rubber specifically selected for this size. It is essential to verify that the strap measures 22mm at the attachment end and that the tip profile is compatible with the short, slightly curved lugs of the Chronomat.

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, maintenance and intensity of use. A quality artisan vegetable-tanned calfskin strap, properly conditioned and rotated with other straps, can last between 2 and 5 years. Alligator leather, due to the density and compactness of its skin fibre, generally offers greater longevity. Exposure to moisture, perspiration and UV rays are the main factors accelerating wear.

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