Breitling · Chronomat B01 42

Strap for Chronomat B01 42 Stainless Steel / Frecce Tricolori / Rouleaux

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceAB01344A1C1A1
FamilyChronomat B01 42
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2020
CaseStainless 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 42 AB01344A1C1A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 42 AB01344A1C1A1, seen from the bench

The Chronomat B01 42 is equipped with the automatic B01 caliber with column-wheel chronograph function and chronometer certification. The watch features a 42mm case with 22mm lugs and offers hour, minute, small seconds and date indication. The movement includes a chronograph system with a column-wheel for greater precision in start, stop and reset operations.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 42 AB01344A1C1A1?

The lug width of the Breitling Chronomat B01 42 AB01344A1C1A1 is 22mm. This measurement is taken with a digital calliper positioned between the two lugs at the narrowest point of the attachment channel. This is a standard dimension for high-end sport chronographs, though the slightly splayed lugs of the Chronomat require a strap with well-shaped shoulders to ensure precise alignment.

What is the best strap for the Breitling Chronomat B01 42?

The most suitable options for the Breitling Chronomat B01 42 are: wide-grain alligator for a formal-sporting register, vegetable-tanned calf leather for everyday wear that develops a patina over time, ballistic nylon NATO to echo the aeronautical heritage, and vulcanised rubber for sport and aquatic environments. A deployant clasp in stainless steel is recommended for material consistency with the case and enhanced wearing comfort.

How do you change the strap on a Breitling Chronomat B01 42?

The strap on the Breitling Chronomat B01 42 is replaced using a 22mm springbar. With a springbar tool, compress the bar by inserting the tip into the designated slot on the bar head, slide inward and remove the strap. The operation should be carried out carefully to avoid scratching the steel lugs. It is advisable to rest the watch on a soft mat during the replacement.

Are there aftermarket straps compatible with the Breitling Chronomat B01 42 AB01344A1C1A1?

Yes, numerous aftermarket straps are compatible with the Breitling Chronomat B01 42 AB01344A1C1A1, provided they have an attachment width of 22mm and a shoulder profile suited to the lug flare. Milano Straps produces handcrafted straps in various leathers and materials, made to measure with 22mm lugs, compatible with this reference and available both online and through the Casati Milano atelier.

How long does a leather strap last on a Breitling Chronomat B01 42?

The lifespan of a leather strap depends on material quality, care and intensity of use. A handcrafted vegetable-tanned calf or high-quality alligator strap, kept away from prolonged water exposure and periodically treated with appropriate products, can last between 2 and 5 years with regular use. Milano Straps straps carry an 18-month guarantee against manufacturing defects.

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