Breitling · Chronomat B01 44

Strap for 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
ReferenceAB011011/G684/131S
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/G684/131S

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 AB011011/G684/131S, seen from the bench

The Chronomat B01 44 is equipped with the Breitling B01 automatic caliber with column-wheel chronograph function and chronometer certification. The movement provides hour, minute, small seconds, date and chronograph indications. The case features 22mm lugs.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 AB011011/G684/131S?

The lug width of the Breitling Chronomat B01 44 AB011011/G684/131S is 22mm. This measurement refers to the internal distance between the two case lugs at the strap attachment point and determines compatibility with any aftermarket strap.

What is the best strap for the Breitling Chronomat B01 44 AB011011/G684/131S?

For the stainless steel Chronomat B01 44 AB011011/G684/131S, the most suitable options are a matte Hornback or Belly alligator strap for a bespoke result, a vegetable-tanned calf leather strap that develops an authentic patina over time, or a vulcanised rubber strap for those wishing to preserve the sporting character of the watch. A deployant clasp is recommended with premium leathers.

How do you change the strap on the Breitling Chronomat B01 44 AB011011/G684/131S?

To replace the strap on the Chronomat B01 44, a fine-tipped springbar tool is required. The sculpted lugs of this model feature a pronounced internal curvature: it is advisable to apply gentle leverage on the spring bar from the inner side of the lug, towards the centre of the case, to avoid scratching the polished or brushed surfaces.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 AB011011/G684/131S?

Yes. Any strap with a 22mm lug width and standard or slightly shaped ends is compatible with the Chronomat B01 44 AB011011/G684/131S. Milano Straps offers a curated selection of handcrafted 22mm straps in alligator, calf leather, shell cordovan, NATO and rubber, specifically made to fit the profile of Breitling lugs.

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

The lifespan of a leather strap depends on the material, care and frequency of use. A quality vegetable-tanned calf strap worn daily on a moderate basis typically lasts 2–3 years before replacement is needed. Certified alligator and shell cordovan, thanks to the density of their fibres, offer superior durability, often exceeding 3–4 years. Milano Straps provides an 18-month guarantee against manufacturing defects.

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