Breitling · Chronomat B01 44

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

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.A693.735P
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.A693.735P

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 HB011059.A693.735P, seen from the bench

The Breitling Chronomat B01 44 (reference HB011059.A693.735P) is an iconic chronograph from contemporary Swiss watchmaking. Originally created in 1984 in collaboration with the Italian Frecce Tricolori aerobatic team, the Chronomat was designed as a flight instrument capable of withstanding extreme jet accelerations. The current 18kt rose gold version combines technical aviation heritage with high watchmaking aesthetics. Case diameter 44 mm, strap size 22 mm.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 HB011059.A693.735P?

The lug width of the Breitling Chronomat B01 44 HB011059.A693.735P is 22mm. This measurement is consistent across the entire Chronomat B01 44 range and allows the fitting of any aftermarket strap with a 22mm attachment, whether with a traditional buckle or a deployant clasp.

What is the best strap for the Breitling Chronomat B01 44 HB011059.A693.735P?

For the rose gold variant of the Chronomat B01 44, alligator straps in polished bordeaux, cognac brown or midnight blue complement the precious case without compromising its sporting character. For a more casual aesthetic, a vegetable-tanned calf leather strap or a woven nylon NATO are technically appropriate and chromatically coherent choices.

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

The strap on the Chronomat B01 44 is secured via standard 22mm spring bars fitted within the case lugs. A double-ended spring bar tool is sufficient to compress the bars and remove the original strap. The operation takes approximately two minutes and does not require intervention by an authorised watchmaker.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 HB011059.A693.735P?

Yes. Any strap with a 22mm lug width is technically compatible with the Chronomat B01 44. MilanoStraps.it offers a curated selection of handcrafted straps — in leather, alligator, calf and technical materials — made with stitching and thickness calibrated to fit the lugs of this 44mm case precisely.

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, frequency of use and level of care. A quality alligator strap, kept away from water and heavy perspiration, typically lasts between three and five years. Vegetable-tanned calf straps develop a distinctive patina over time that enhances their appearance, with a comparable lifespan when properly maintained.

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