Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Diamond / Blackeye Gray / 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
ReferenceAB011053.F546.375A
FamilyChronomat B01 44
MovementBreitling 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 AB011053.F546.375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011053.F546.375A, seen from the bench

The Chronomat B01 44 features the automatic caliber B01 with column-wheel chronograph function and chronometer certification. The movement offers indication of hours, minutes, small seconds and date. The case features 22mm lugs.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011053.F546.375A?

The Breitling Chronomat B01 44 AB011053.F546.375A has a lug width of 22mm. This measurement is determined by the geometry of the 44mm case and must be respected to the millimetre to ensure a correct and secure fit between the strap and 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 alligator for an elegant profile that develops a personal patina over time, smooth calf leather for everyday versatility, perforated rally-style straps to honour the model's racing DNA, and vulcanised rubber for sporting or aquatic use. The correct lug width is 22mm.

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

To replace the strap on the Chronomat B01 44, use a spring bar tool to compress and remove the spring bars from the lugs. Gently lever the tip of the spring bar at the lug opening, slide out the old strap, and fit the new one with 22mm spring bars. The operation does not require opening the case and can be carried out independently with basic watchmaking tools.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011053.F546.375A?

Yes. Any strap with a 22mm lug width and standard spring bars is compatible with the Chronomat B01 44. Milanostraps.it offers handcrafted straps in alligator, calf leather, shell cordovan and rubber, produced specifically for this measurement, with the tail end shaped for a precise fit within the Breitling case lugs.

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 daily use. A handcrafted alligator or calf leather strap with vegetable tanning can last between two and five years with regular wear. Prolonged exposure to water, heavy perspiration and heat sources accelerates deterioration. Casati Milano straps carry an 18-month guarantee 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