Breitling · Chronomat B01 44

Strap for Chronomat 44 Rose Gold / Diamond / Black Pearl Diamond / 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
ReferenceHB0110AE.BC53.731P
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.BC53.731P

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 44 HB0110AE.BC53.731P, seen from the bench

The Breitling Chronomat B01 44 HB0110AE.BC53.731P is a 44mm rose gold chronograph featuring the in-house B01 movement with column-wheel mechanism, COSC certification, and approximately 70-hour power reserve. The watch displays hours, minutes, small seconds at 9 o'clock, date at 3 o'clock, and chronograph functions with minutes at 3 o'clock and hours at 9 o'clock. The 22mm lug width accommodates standard 22mm straps with optional taper to 20mm, secured by 1.8mm springbars.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 44 HB0110AE.BC53.731P?

The lug width of the Breitling Chronomat B01 44 HB0110AE.BC53.731P is 22mm. This measurement is taken between the two lower lugs, inside the springbar hole, using a digital calliper. Any aftermarket strap with a flat 22mm end is compatible with this reference.

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

For the Chronomat B01 44 in rose gold, alligator leather straps with vegetable tanning in tobacco, cognac or bordeaux shades offer the most coherent pairing with the case material. Shell cordovan, with its natural lustre and the patina it develops over time, is the connoisseur's choice. For sporting or marine use, high-density vulcanised rubber is the most appropriate technical alternative.

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

To replace the strap on the Chronomat B01 44 you will need a double-tipped springbar tool. The original Breitling springbars are standard 1.8mm diameter. Insert the tip of the tool into the lug slot, compress the springbar and slide the strap free. The operation does not require a watchmaker and can be carried out independently, provided care is taken to avoid scratching the rose gold case.

Are there aftermarket straps compatible with the Breitling Chronomat B01 44 HB0110AE.BC53.731P?

Yes. Any aftermarket strap with a 22mm attachment width and a flat or slightly curved end is compatible with the Breitling Chronomat B01 44. MilanoStraps offers a curated selection of handcrafted straps in alligator, calf, shell cordovan and rubber, made to fit this specific model and available with buckle or deployant clasp in various metals and finishes.

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

The lifespan of a leather strap depends on the hide used, frequency of wear and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, with regular but not intensively daily use, will maintain its structural and aesthetic integrity for 3 to 5 years. Cordovan, owing to the density of its fibres, tends to last longer and develops a distinctive patina. Periodic application of a neutral leather conditioner significantly extends the life of the strap.

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