Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Diamond / Onyx Black / 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.B967.375A
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.B967.375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB0110AA.B967.375A, seen from the bench

The Breitling Chronomat B01 44 (ref. AB0110AA.B967.375A) is a 44mm stainless steel chronograph born in 1984 for the Frecce Tricolori aerobatic team. It features the in-house B01 manufacture movement, COSC-certified chronometer, with column wheel mechanism and approximately 70 hours power reserve. The dial displays three symmetrical sub-dials with running seconds at 6 o'clock, chronograph minutes at 3 o'clock, and chronograph hours at 9 o'clock, plus date at 6 o'clock. Lug width is 22mm, with integrated lugs soldered to the case middle for structural continuity.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB0110AA.B967.375A?

The lug width of the Breitling Chronomat B01 44 is 22mm. This measurement corresponds to the internal distance between the two case lugs and determines the correct strap width. To verify on your own piece, use a millimetre calliper positioned between the lugs, excluding the case body itself.

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

For the Chronomat B01 44, the most suitable materials are vegetable-tanned calf leather for everyday wear, alligator with Louiseville grain for formal occasions, and vulcanised rubber for sport or humid environments. Shell cordovan is the ideal choice for those seeking a strap that improves with wear, developing a distinctive patina. All straps must feature a 22mm lug width.

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

To change the strap on the Chronomat B01 44, you need to remove the spring bars connecting the strap to the case lugs. Use a dedicated springbar tool or a fine-tipped screwdriver to compress the spring bar ends and slide them out of the lug holes. Care must be taken to avoid scratching the case; alternatively, a watchmaker or specialist atelier can perform the swap in a matter of minutes.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44?

Yes, the Breitling Chronomat B01 44 reference AB0110AA.B967.375A uses a standard 22mm lug attachment with conventional spring bars. Any aftermarket strap measuring 22mm with standard spring bars is compatible. milanostraps.it offers a curated selection of handcrafted Made in Italy straps in leather, rubber and nylon, specifically selected for this lug width.

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

The lifespan of a leather strap depends on hide quality, frequency of use and exposure to perspiration and moisture. A quality calf leather strap used daily typically lasts 18 to 24 months. Shell cordovan, due to the density of its fibres, can last considerably longer. Regular conditioning with a leather cream and rotation between multiple straps will meaningfully extend the working life of any strap.

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