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
ReferenceHB0110AE.A693.739P
FamilyChronomat B01 44
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2009
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 HB0110AE.A693.739P

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 HB0110AE.A693.739P, seen from the bench

The Breitling Chronomat B01 44 in 18K rose gold (ref. HB0110AE.A693.739P) is a professional chronograph born in the 1980s for Italian aerobatic pilots. The 44mm rose gold case houses the in-house B01 movement, a COSC-certified chronograph with column wheel, offering over 70 hours of power reserve. The 22mm lug width ensures balanced proportions, compatible with leather and rubber straps featuring typical tapering toward the buckle.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 HB0110AE.A693.739P?

The lug width of the Breitling Chronomat B01 44 HB0110AE.A693.739P is 22mm. This measurement refers to the internal distance between the two lugs where the strap is fitted. It is advisable to verify this with a calliper before purchasing an aftermarket strap.

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

For a 44mm rose gold case, straps in alligator leather in cognac, tobacco or bordeaux tones offer the most harmonious chromatic pairing with the metal. Vegetable-tanned calf leather is a strong alternative for those who prefer to develop a personal patina over time. For a sportier approach, technical rubber or two-tone NATO straps reference the model's aeronautical origins.

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

Changing the strap on the Chronomat B01 44 requires a dedicated springbar tool inserted into the appropriate slot on the integrated lug. As the lugs on this model are integrated into the case, care must be taken not to scratch the metal during the operation. If in doubt, it is advisable to entrust the job to a qualified watchmaker.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 HB0110AE.A693.739P?

Yes, there is a wide range of aftermarket straps compatible with a 22mm lug width. It is important to select straps with straight or slightly tapered ends, suited to the Chronomat's integrated lugs. Milano Straps offers a selection of handcrafted 22mm straps available online or bespoke through the Casati Milano atelier.

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

The lifespan of a leather strap depends on the quality of the hide, daily care and frequency of use. A high-quality alligator or vegetable-tanned calf strap, kept away from excessive perspiration and moisture, can last between 2 and 5 years whilst retaining a well-kept appearance. Using a deployant clasp significantly reduces mechanical stress on the leather, extending its useful 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