Breitling Chronomat AB0158101A1A1
The Breitling Chronomat AB0158101A1A1 takes a 20.05 mm watch band.

Breitling · Chronomat
- Lug width
- 20.05 mm
- Case diameter
- 42 mm
- Reference
- AB0158101A1A1
- Family
- Chronomat
- Water resistance
- 200
- Model
- Chronomat AB0158101A1A1
Will a strap close on your wrist?
Set for this watch: 42 mm of case and 20.05 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 20.05 mm is the gap between the lugs, so a 20.05 mm band goes in without adapters. Whether it sits flush against a 42 mm case depends on how that case is shaped.
- Inside the Chronomat family the lug width is not one number: it runs 16, 18, 20, 20.05, 22 mm. This reference is the 20.05 mm one, so a band bought for another Chronomat may not fit it. Why the size changes inside a family →





