Breitling · Chronomat B01 44

Strap for Chronomat 44

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
ReferenceIB011012.A698.375A
FamilyChronomat B01 44
MovementBreitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer
CaseMother of Pearl | Rose Gold, Stainless 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 IB011012.A698.375A

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 IB011012.A698.375A, seen from the bench

The Breitling Chronomat B01 44 reference IB011012.A698.375A combines aeronautical heritage with precious design. Born in 1984 as an instrument for acrobatic pilots, this steel and rose gold version features a mother-of-pearl dial and 44mm cushion case. The in-house B01 caliber delivers 70 hours of power reserve, 28.800 vph frequency, and COSC chronometer certification. The 22mm lug width is a structural characteristic of the Chronomat B01 44, with straight lugs on the cushion case. Water resistance reaches 200 meters, confirming its instrument-grade construction and precision engineering.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 IB011012.A698.375A?

The lug width of the Breitling Chronomat B01 44 IB011012.A698.375A is 22mm. This is a structural specification of the cushion-case design and remains consistent across all examples of this reference. To verify it on your own watch, measure the internal gap between the two lugs at the strap insertion point using a digital calliper.

What is the best strap for the Breitling Chronomat B01 44 with mother-of-pearl dial and rose gold case?

For the Chronomat B01 44 featuring a mother-of-pearl dial and rose gold accents, square-scale alligator in cognac or bordeaux tones is the most coherent choice, enhancing the warm character of the rose gold without competing with the dial's iridescence. Vegetable-tanned calf leather in a padded finish offers a sportier, more lived-in aesthetic. Shell cordovan provides structured lustre for those seeking a middle ground. A deployante clasp in steel or rose gold complements the instrument-driven ethos of the watch.

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

The strap on the Breitling Chronomat B01 44 is secured by standard 22mm spring bars. Replacement requires a spring bar tool with a forked or angled tip to compress and release the bars from the lug holes. The procedure can be carried out independently with care, though entrusting it to a watchmaker or specialist retailer is advisable to avoid case scratches. Milano Straps includes replacement spring bars with every strap.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 IB011012.A698.375A?

Yes. Any strap with a standard 22mm attachment and spring bars is technically compatible with the Breitling Chronomat B01 44 IB011012.A698.375A. Milano Straps offers a wide selection of handcrafted Italian 22mm straps in leather, rubber and nylon, with materials and finishing at a level comparable to or exceeding the original fitment. Tail length can also be specified to suit individual wrist circumferences.

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 conditions. A high-quality alligator or vegetable-tanned calf strap worn daily and kept dry will typically last between 18 and 36 months. Frequent exposure to perspiration, water or direct sunlight accelerates deterioration. Milano Straps covers every strap with an 18-month production defect warranty and recommends rotating between two or more straps to extend their service life.

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