Breitling · Chronomat B01 44

Strap for Chronomat 44 Stainless Steel / MOP / Calf

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
ReferenceAB011011/G686/433X
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 AB011011/G686/433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011011/G686/433X, seen from the bench

The Chronomat B01 44 represents the modern evolution of the Breitling chronograph collection. It is equipped with the in-house B01 automatic chronograph movement with column-wheel function and chronometer certification. 44mm case with 22mm lugs, featuring hour, minute, small second and date indication.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011011/G686/433X?

The lug width of the Breitling Chronomat B01 44 AB011011/G686/433X is 22 mm. This measurement should be taken with a digital calliper at the narrowest point of the lug channel and is the reference size required when purchasing any compatible aftermarket strap.

What is the best strap for the Breitling Chronomat B01 44 AB011011/G686/433X?

The most suitable materials for the Chronomat B01 44 are Tuscan vegetable-tanned leather for everyday elegant wear, Hornback alligator for formal occasions with a texture that complements the rider-tab bezel, and vulcanised rubber or NATO webbing for sporting use. Regardless of choice, all straps must feature a 22 mm lug width.

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

To replace the strap on the Chronomat B01 44, use a fine-tipped spring bar tool, ideally with a nylon tip to avoid scratching the stainless steel lugs. Remove the spring bar from the lug channel, slide out the old strap, insert the new one and click the spring bar back into its recesses. Always work on a soft surface to protect the crystal and case.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011011/G686/433X?

Yes, a wide range of aftermarket straps with a 22 mm lug width are compatible with the Breitling Chronomat B01 44 AB011011/G686/433X. Milano Straps offers a curated selection of handcrafted straps in leather, alligator, shell cordovan and rubber, all manufactured with standard 22 mm spring bars, ensuring a precise fit without any modification to the original lugs.

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

The lifespan of a leather strap depends on the type of hide, care routine and frequency of wear. A quality vegetable-tanned strap, kept away from excessive moisture and perspiration and treated periodically with a neutral leather conditioner, can last between 3 and 6 years while developing a characterful patina. Alligator and shell cordovan, thanks to their dense fibrous structure, generally offer greater durability than standard calfskin.

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