Waxing crescent

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collectors and the curious.

Side by side

The watches side by side

Differs

BreitlingPremier B15 Duograph 42AB1510171C1
Breitling Premier B15 Duograph 42
LonginesSpirit Zulu TimeL3.812.4.93
Longines Spirit Zulu Time
BreitlingPremier B01 Chronograph 42AB0145171C1
Breitling Premier B01 Chronograph 42

General

Status
In production
In production
In production
Introduced (differs)
2021
2022
2023
Retail price (differs)
US$12,450
US$3,450
US$9,750

Case

Shape
Round
Round
Round
Diameter
42 mm
42 mm
42 mm
Thickness (differs)
15.35 mm
14.1 mm
13.6 mm
Lug to lug
Not known
49.4 mm
Not known
Lug width (differs)
22 mm
22 mm
22.05 mm
Material
Stainless steel
Stainless steel
Stainless steel
Bezel (differs)
Fixed
Bidirectional rotating
Fixed
Caseback (differs)
Display (sapphire)
Solid
Display (sapphire)
Crystal (differs)
Sapphire, Domed, Anti-reflective on both sides
Sapphire, Anti-reflective on both sides
Sapphire, Domed, Anti-reflective on both sides
Crown (differs)
Push-pull
Screw-down
Push-pull
Water resistance
100 m
100 m
100 m
Weight
Not known
113.2 g
Not known

Movement

Type (differs)
Manual winding
Automatic
Automatic
Origin
In-house
Not known
In-house
Power reserve (differs)
70 h
72 h
70 h
Frequency (differs)
28,800 vph (4 Hz)
25,200 vph (3.5 Hz)
28,800 vph (4 Hz)
Jewels (differs)
27
21
41
Certification
Not known
COSC
Not known
Functions (differs)
  • 1/4th second, 30 minutes
  • Hours, minutes, seconds and date. 24 hours hand with time zone mechanism
  • 1/4th second, 30 minutes
  • Dial aperture
Complications (differs)
  • Chronograph
  • Small seconds
  • Split-seconds (rattrapante) chronograph
  • Date
  • GMT / second time zone
  • Chronograph
  • Date
  • Small seconds

Dial

Colour
Blue
Blue
Blue
Pattern
Sunburst
Sunburst
Sunburst
Indices (differs)
Arabic numerals
Applied, Arabic numerals
Arabic numerals
Hands (differs)
Syringe
Baton
Syringe
Lume
Not known
Super-LumiNova
Not known

Bracelet

Type
Leather strap
Leather strap
Leather strap
Name (differs)
Gold brown alligator leather strap
Not known
Blue alligator leather strap
Material
Not known
Stainless steel
Not known
Clasp (differs)
Folding clasp, Stainless steel
Folding clasp
Folding clasp, Stainless steel
Strap colour (differs)
Gold brown
Blue
Blue