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Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / MOP / 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
ReferenceAB011011/G686/375A
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

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Straps for the Chronomat B01 44 AB011011/G686/375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011011/G686/375A, seen from the bench

The Breitling Chronomat B01 44, reference AB011011/G686/375A, descends from the chronograph Breitling designed in 1984 with the Frecce Tricolori aerobatic team. The stainless steel case measures 44mm with a robust profile and distinctive rider tabs on the rotating bezel at 3, 6, 9 and 12 o'clock. The internal B01 caliber is COSC-certified and features a column-wheel chronograph with vertical coupling, 28,800 vibrations per hour, and over 70 hours power reserve. The lug width is 22mm.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011011/G686/375A?

The lug width of the Breitling Chronomat B01 44 reference AB011011/G686/375A is 22mm. This measurement should be taken internally between the two lugs using a digital calliper, at the narrowest point before the lug curves outward. Respecting this specification is essential to ensure correct spring bar fitment and strap compatibility.

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

The ideal choice depends on intended use. For formal or semi-formal occasions, a matte alligator strap with tone-on-tone stitching complements the stainless steel case without undermining the Chronomat's technical character. For daily wear, Italian perforated calf leather offers breathability and develops a distinctive patina over time. Ballistic nylon NATO remains the most fitting choice given the watch's aeronautical heritage: lightweight and highly resistant.

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

The strap is removed using a dedicated spring bar tool, inserted either through the lug hole or directly between the strap and lug. It is advisable to work on a soft surface to avoid scratching the case. On the Chronomat B01 44, the lugs are short and the bezel wide: care must be taken with the angle of the tool to avoid marking the satin-finished surfaces.

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

Yes. Any strap with a 22mm lug width and standard spring bars is technically compatible with the Breitling Chronomat B01 44. MilanoStraps offers a curated selection of handcrafted straps in various leathers and materials, all produced with 22mm attachments and available with either an ardillon buckle or a deployant clasp. It is also worth verifying the half-strap lengths to ensure a proper fit on the wrist.

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

The lifespan of a leather strap depends on material quality and frequency of use. A high-quality vegetable-tanned calf leather strap worn daily and exposed to moderate perspiration and humidity typically lasts between 18 and 36 months. Alligator leather, being denser and more compact, tends to last longer when properly maintained. Avoiding water immersion and prolonged sun exposure significantly preserves the integrity of the leather fibres.

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