Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / Silver / Rubber

The Chronomat 44 Stainless Steel / Silver / Rubber 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.G684.131S
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011
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.G684.131S

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011012.G684.131S, seen from the bench

The Breitling Chronomat B01 44 is a professional chronograph born in 1984 for aerobatic patrol operations. The AB011012.G684.131S model features a stainless steel 44 mm case with blue dial and bidirectional rotating bezel fitted with four rider tabs at 3, 6, 9, and 12 o'clock. The in-house Breitling B01 caliber is COSC-certified, offering automatic winding, column wheel, vertical friction escapement, and approximately 70 hours power reserve. Lug width is 22 mm, compatible with H-link bracelets or sport straps.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011012.G684.131S?

The lug width of the Breitling Chronomat B01 44 AB011012.G684.131S is 22 mm. This measurement should be taken with a digital calliper at the inner distance between the two lugs at the strap attachment point.

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

The most suitable straps for the Chronomat B01 44 are hornback alligator for a smart-sport aesthetic, Tuscan calf leather with vegetable tanning for a vintage look with natural patina, or FKM rubber for intensive daily use. The lug width is 22 mm; an ardillon buckle or deployant clasp in brushed steel is recommended.

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

The strap on the Breitling Chronomat B01 44 is removed using a spring bar tool inserted into the lug slot to compress the spring bar. No specialist tools are required, though care should be taken to avoid scratching the steel surfaces. The standard replacement spring bar size is 22 mm.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011012.G684.131S?

Yes, the aftermarket offers an extensive selection of straps compatible with the 22 mm lug width of the Breitling Chronomat B01 44. Milano Straps provides handcrafted options in leather, rubber and nylon, either bespoke or available online, all verified for correct attachment width and spring bar strength.

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 tanning, frequency of use and maintenance. A quality vegetable-tanned calf strap, with regular use and periodic conditioning, typically lasts 2–4 years. High-grade alligator straps can last 5–8 years if kept away from prolonged exposure to perspiration and moisture.

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

The atelier's website: casatimilano.com