Breitling Chronomat B01 44

Most Breitling Chronomat B01 44 references take a 22 mm watch strap: 326 of 345. The lug width follows the case size: 44 mm case → 22 mm and 47 mm case → 24 mm.

Breitling Chronomat B01 44 lug width by case size

345 references measured. Updated 2026-11-03.

Case	Lug width	Buckle width	References	Watch strap attachment	For example
44 mm	22 mm · 20 mm on 1	20 mm	327	—	A001B1PA, A4435910/B811, A4435912/B811
47 mm	24 mm	—	18	—	AB041012.BA69.135S, AB041012.BA69.383A, AB041012.BA69.441X

References that take a different watch strap

AB0115101F1A1: 20 mm, not the 22 mm of most 44 mm cases

Questions about the Breitling Chronomat B01 44

Do all Breitling Chronomat B01 44 case sizes take the same watch strap?

No. The lug width changes with the case size: the 44 mm case takes 22 mm and the 47 mm case takes 24 mm. Check your case diameter before you buy.

What buckle width does the Breitling Chronomat B01 44 44 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 44 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 →