Breitling Chronomat lug width

Watch line130 references

Lug widths across the line

22 mm is the most common lug width on the Breitling Chronomat: 63 of the 117 references with a known width (54%). Other references use 20 mm, 18 mm, so check your exact reference.

Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size. Report an error

Breitling Chronomat strap size through the years

202136 mm case18 mmlug widthA10380New strap size
202042 mm case22 mmlug widthAB0134
201644 mm case22 mmlug widthAB01109New strap size
199040.5 mm case20 mmlug widthA13048
195039 mm case20 mmlug width81950, A13352

First year each case and lug width combination appears in the line, newest first.

130 Breitling Chronomat references

The story of the Breitling Chronomat

Worn by

Giannis AntetokounmpoSport

The NBA star is a Breitling ambassador and has his own Chronomat B01 42 edition.

Charlize TheronScreen

As a member of Breitling's Cinema Squad, Theron wore the Chronomat 36 with a diamond-set bezel during an online broadcast hosted by Breitling CEO Georges Kern.

Erling HaalandAmbassador

Haaland has been a Breitling ambassador since 2022 and is mainly linked with the Super Chronomat.

Generations and strap changes

2026
2026 design refresh
Rider tabs were smoothed, grip nubs removed and the original onion-shaped crown returned, on a 42mm chronograph and 40mm and 36mm time-and-date models.
A new rubber strap modelled on the Rouleaux bracelet fits all B01 chronograph cases.
2024
140th anniversary models
Breitling added a 44 mm Super Chronomat perpetual calendar and a 36 mm Victoria Beckham edition.
2022
Automatic GMT 40
A 40mm, 11.7mm thick GMT model was added on the Rouleaux bracelet.
2021
Super Chronomat B01 44
A larger 44mm, 14.4mm thick chronograph joined the line.
Offered on a rubber strap shaped like a Rouleaux bracelet.
2020
Chronomat B01 42
The relaunch brought the chronograph to 42mm, 15.10mm thick, down from the earlier 44mm.
The Rouleaux bracelet with butterfly clasp returned, reintroduced for the first time since 1984.
2009
Chronomat 44 B01
First Chronomat with the in-house Calibre 01, which has a 70-hour power reserve.
2000
Chronomat 2000
Released with the Calibre 13 movement.
1984
Chronomat ref. 81950
Developed with the Frecce Tricolori, the new Chronomat replaced the slide rule with four rider tabs on the bezel.
The Rouleaux bracelet debuted with this generation.
1942
Original Chronomat ref. 769
The first Chronomat launched with a circular slide rule, based on a 1940 patent.

Firsts and innovations

The 1940 Breitling patent covered a rotating slide-rule bezel for calculations, which became the basis of the first Chronomat.

The rider tabs on the bezel act as bumpers and quarter-hour markers. They can be swapped at 15 and 45 for count-up or countdown timing.

About Breitling

Founded in 1884 in Saint-Imier, Switzerland.

The Breitling story

FAQ

What lug width does the Breitling Chronomat use?

Most references use 22 mm (54% of the 117 references with a known width). Some use 20 mm or 18 mm.

Do all Breitling Chronomat references take the same strap?

No. 3 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.

Help

What is lug width?

The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

Measure it in 30 seconds

Take the strap off, or look at the back of it: many straps print their width.
Measure the inside gap between the lugs with a caliper or a millimetre ruler.
Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

Strap, quick release or system?

Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.