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Breitling · Chronomat B01 44

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

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll Breitling
Lug width22 mm
Case diameter44 mm
ReferenceAB011053.G685.375A
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

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Straps for the Chronomat B01 44 AB011053.G685.375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011053.G685.375A, seen from the bench

The Breitling Chronomat B01 44, reference AB011053.G685.375A, is a sports chronograph born in 1984 for the Italian Frecce Tricolori. Its signature bidirectional bezel features rider tabs at 3, 6, 9, and 12 o'clock, originally designed as slide rules for aerobatic pilots. The stainless steel case measures 44mm with a lug width of 22mm. It houses the Breitling B01 manufacture caliber, a COSC-certified chronometer with a 70-hour power reserve, column wheel mechanism, and ±4 seconds/day precision.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011053.G685.375A?

The lug width of the Breitling Chronomat B01 44, reference AB011053.G685.375A, is 22mm. This measurement is taken with a digital calliper at the internal distance between the two lugs, where the strap interfaces with the case.

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

The most suitable materials for the Chronomat B01 44 are alligator leather for formal occasions, vegetable-tanned calfskin with a coarse grain for everyday wear, and vulcanised rubber for those who prioritise sporting functionality. The correct size is 22mm tapering to 20mm towards the buckle or deployant clasp.

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

The strap on the Chronomat B01 44 is replaced using a fine-tipped or spatula spring bar tool. Insert the tool into the lug hole, compress the spring bar and slide the strap out. The operation takes approximately two minutes and can be performed independently, taking care not to scratch the stainless steel surfaces.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011053.G685.375A?

Yes, any standard 22mm strap with spring bar ends is compatible with the Breitling Chronomat B01 44 AB011053.G685.375A. Milano Straps handcrafted straps are made to measure with specific end pieces designed to ensure a precise fit against the original Breitling lugs.

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

The longevity of a leather strap depends on leather quality and usage patterns. A quality vegetable-tanned calfskin strap typically lasts 2–3 years with daily wear. Alligator leather, being denser and more resilient, can exceed 4–5 years. Minimising prolonged exposure to water and perspiration significantly extends the strap's service life.

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