As part of the 2026 Chronomat B01 42 lineup, the UB0158101B1U1 features a two-tone 42mm case and a matching Rouleaux bracelet with a micro-adjustment clasp. This model pairs an anthracite dial with black counters, powered by the COSC-certified B01 movement, and incorporates a redesigned, integrated single-piece chronograph bezel.
Movement Type
Automatic Chronograph
Caliber
Caliber B01Jewels
47
Reserve
70
Frequency
28800
Hands
Small Seconds
Shape
Round
Lug Distance
22.00 mm
Glass
Sapphire
Thickness
13.77 mm
Diameter
42.00 mm
Water Resistance
200.00 m
Dial Color
Grey
Material
Rouleaux
