Breitling Chronomat B01 42

Every Breitling Chronomat B01 42 reference takes a 22 mm watch strap: all 135 we measured.

Breitling Chronomat B01 42 lug width by case size

135 references measured. Updated 2026-11-03.

Case	Lug width	Buckle width	References	Watch strap attachment	For example
42 mm	22 mm	20 mm	135	—	AB0134101A1A1, AB0134101B1A1, AB0134101B2A1

Questions about the Breitling Chronomat B01 42

What buckle width does the Breitling Chronomat B01 42 42 mm take?

20 mm. The watch strap is 22 mm at the case and narrows to 20 mm at the buckle.

Every Breitling Chronomat B01 42 reference

Other Breitling families

Inside each one the lug width often changes: it is the reference that decides.

All Breitling families → · Why the size changes inside a family →