Waxing crescent

Watch news and tools for
collectors and the curious.

Side by side

The watches side by side

Differs

BreitlingPremier B01 Chronograph 42AB0145221B1
Breitling Premier B01 Chronograph 42
BreitlingPremier B15 Duograph 42AB1510171C1
Breitling Premier B15 Duograph 42
BreitlingPremier B01 Chronograph 42AB0145171C1
Breitling Premier B01 Chronograph 42

General

Status
In production
In production
In production
Introduced (differs)
2023
2021
2023
Discontinued
2025
Not known
Not known
Retail price (differs)
US$9,750
US$12,450
US$9,750

Case

Shape
Round
Round
Round
Diameter
42 mm
42 mm
42 mm
Thickness (differs)
13.6 mm
15.35 mm
13.6 mm
Lug width (differs)
22.05 mm
22 mm
22.05 mm
Material
Stainless steel
Stainless steel
Stainless steel
Bezel
Fixed
Fixed
Fixed
Caseback
Display (sapphire)
Display (sapphire)
Display (sapphire)
Crystal
Sapphire, Domed, Anti-reflective on both sides
Sapphire, Domed, Anti-reflective on both sides
Sapphire, Domed, Anti-reflective on both sides
Crown
Push-pull
Push-pull
Push-pull
Water resistance
100 m
100 m
100 m

Movement

Type (differs)
Automatic
Manual winding
Automatic
Origin
In-house
In-house
In-house
Power reserve
70 h
70 h
70 h
Frequency
28,800 vph (4 Hz)
28,800 vph (4 Hz)
28,800 vph (4 Hz)
Jewels (differs)
41
27
41
Functions (differs)
  • 1/4th second, 30 minutes
  • Dial aperture
  • 1/4th second, 30 minutes
  • 1/4th second, 30 minutes
  • Dial aperture
Complications (differs)
  • Chronograph
  • Date
  • Small seconds
  • Chronograph
  • Small seconds
  • Split-seconds (rattrapante) chronograph
  • Chronograph
  • Date
  • Small seconds

Dial

Colour (differs)
Black
Blue
Blue
Pattern
Sunburst
Sunburst
Sunburst
Indices
Arabic numerals
Arabic numerals
Arabic numerals
Hands
Syringe
Syringe
Syringe

Bracelet

Type
Leather strap
Leather strap
Leather strap
Name (differs)
Black alligator leather strap
Gold brown alligator leather strap
Blue alligator leather strap
Clasp
Folding clasp, Stainless steel
Folding clasp, Stainless steel
Folding clasp, Stainless steel
Strap colour (differs)
Black
Gold brown
Blue