Milano Straps
← Breitling

ITENDEFRES

SearchCart
Menu

Breitling · Chronomat B01 42

Strap for Chronomat B01 42 Stainless Steel / Silver / Rubber / China

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

Lug width

22mm
22 mm strapsAll Breitling
Lug width22 mm
Case diameter42 mm
ReferenceAB0134101G1S1
FamilyChronomat B01 42
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2022
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

View →

Straps for the Chronomat B01 42 AB0134101G1S1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronomat B01 42 AB0134101G1S1, seen from the bench

The Breitling Chronomat B01 42 AB0134101G1S1 is a professional chronograph born in 1984 in collaboration with the Italian Aerobatic Patrol, the Frecce Tricolori. This 42mm stainless steel version features the Breitling B01 in-house automatic chronograph movement with column wheel, certified COSC as a chronometer. The case houses a balanced dial with small seconds at 9 o'clock, date at 3 o'clock, and chronograph counters. The 22mm lug width is proportionate to the case design and requires a properly finished strap end to avoid aesthetic gaps.

Frequently asked questions

What is the lug width of the Breitling Chronomat B01 42 AB0134101G1S1?

The Breitling Chronomat B01 42 AB0134101G1S1 has a lug width of 22mm. This measurement is taken between the two lugs using a digital calliper and is the essential parameter for sourcing a compatible aftermarket strap.

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

The most suitable materials for the Chronomat B01 42 are vegetable-tanned Tuscan calf leather — which develops a patina consistent with the tool-watch aesthetic — flat-grain alligator for formal occasions, nylon NATO for faithfulness to its aeronautical origins, and vulcanised rubber for sporting use. The correct width is 22mm.

How do I change the strap on the Breitling Chronomat B01 42?

To replace the strap on the Chronomat B01 42, use a thin-tipped spring bar tool. Insert the tip into the slot of the spring bar, compress it towards the centre and slide the strap away from the lug. No professional tools are required, but it is advisable to work on a soft cloth to avoid scratching the stainless steel case.

Are there aftermarket straps compatible with the Breitling Chronomat B01 42 AB0134101G1S1?

Yes. Any 22mm straight-end strap is technically compatible with the Breitling Chronomat B01 42 AB0134101G1S1. Milano Straps offers a curated selection of handcrafted leather, NATO and rubber straps specifically suited to this width, with customisation options for buckle and keeper.

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

The lifespan of a leather strap depends on the quality of the hide, frequency of use, and exposure to perspiration and moisture. A quality vegetable-tanned calf strap typically lasts between 2 and 4 years with daily wear. Shell cordovan and properly tanned alligator can exceed 5 years while retaining structural integrity and a refined appearance.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only