Waxing crescent

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collectors and the curious.

Side by side

The watches side by side

Differs

BreitlingChronomat B01 Chronograph 42AB0158101A1
Breitling Chronomat B01 Chronograph 42
NOMOS GlashütteAhoi550
NOMOS Glashütte Ahoi

General

Status
In production
Not known
Introduced (differs)
2026
2013
Retail price
US$9,900
Not known

Case

Shape
Round
Round
Diameter (differs)
42 mm
40.3 mm
Thickness (differs)
13.77 mm
10.6 mm
Lug to lug
Not known
51 mm
Lug width (differs)
20.05 mm
20 mm
Material
Stainless steel
Stainless steel
Bezel
Unidirectional rotating
Not known
Caseback
Display (sapphire)
Display (sapphire)
Crystal (differs)
Sapphire
Sapphire, Domed
Crown
Screw-down
Screw-down
Water resistance
200 m
200 m

Movement

Type
Automatic
Automatic
Origin
In-house
In-house
Power reserve (differs)
70 h
43 h
Frequency (differs)
28,800 vph (4 Hz)
21,600 vph (3 Hz)
Jewels (differs)
47
26
Functions (differs)
  • 1/4th second, 30 minutes, 12 hours
  • Dial aperture
  • Hours
  • Minutes
  • Small seconds
Complications (differs)
  • Chronograph
  • Date
  • Small seconds
  • Small seconds

Dial

Colour (differs)
White
White silver
Indices
Mixed
Mixed
Hands
Baton
Baton
Lume
Not known
Super-LumiNova

Bracelet

Type (differs)
Metal bracelet
Textile strap
Name (differs)
Polished/brushed stainless steel Rouleaux bracelet
Textile strap blue-black
Material
Stainless steel
Not known
Clasp
Not known
Butterfly, Stainless steel
Strap colour
Not known
Blue
Breitling Chronomat B01 Chronograph 42 AB0158101A1 vs NOMOS Glashütte Ahoi 550 – dialtone