Breitling · Chronomat B01 44

Strap for Chronomat 44 Rose Gold / Diamond / Pearl Roman / Bracelet

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
ReferenceHB011059.A693.375H
FamilyChronomat B01 44
MovementBreitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer
CaseRose Gold

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 HB011059.A693.375H

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 HB011059.A693.375H, seen from the bench

The Breitling Chronomat B01 44 Rose Gold (HB011059.A693.375H) is a chronograph born in 1984 for aviation, featuring a 44mm rose gold case and the in-house B01 movement beating at 28,800 vph with approximately 70 hours of power reserve. The case is water-resistant to 200 meters with a screw-down caseback. The lug width is 22mm and requires curved-end straps for proper fit. COSC-certified chronometer with column wheel and hack seconds function.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 HB011059.A693.375H?

The lug width of the Breitling Chronomat B01 44 HB011059.A693.375H is 22 mm. The integrated lugs feature a distinctive curvature that requires straps with curved ends to ensure a clean and precise fit between the case and the strap.

What is the best strap for the Breitling Chronomat B01 44 in rose gold?

For the rose gold version, an alligator strap with vegetable tanning in cognac or bordeaux tones provides the most coherent chromatic and material pairing with the warmth of the metal. Alternatively, box-grain calfskin in tobacco brown or vulcanised rubber restores the Chronomat's original sporting character without compromising artisanal quality.

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

The strap is removed using a flat-tipped spring bar tool or a watchmaker's screwdriver, applying gentle pressure on the spring bar inside the lug. It is advisable to work on a padded surface to protect the rose gold case from scratches. Some Chronomat versions feature the Breitling Professional bracelet with a quick-release system that requires no tools.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 HB011059.A693.375H?

Yes. Aftermarket straps in 22 mm with curved ends are compatible with the Chronomat B01 44. It is essential to specify the lug curvature when ordering to ensure a proper fit. Milano Straps produces handcrafted straps with curved ends specifically calibrated for the Chronomat's integrated lugs.

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

Longevity depends on the material and usage. A quality vegetable-tanned alligator strap, properly maintained — avoiding prolonged contact with water and perspiration, and conditioning the leather every 2–3 months — will retain structural integrity and appearance for 3–5 years with daily wear. Shell cordovan and box-grain calfskin behave similarly. Milano Straps offers an 18-month warranty against manufacturing defects on all handcrafted straps.

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