Waxing crescent

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Side by side

The watches side by side

Differs

Grand SeikoHeritageSBGH353
Grand Seiko Heritage
ZenithChronomaster Open03.3300.3604/51
Zenith Chronomaster Open

General

Status
In production
Not known
In production
Introduced
Not known
2022
Not known
Nickname
Shubun
Not known
Not known
Retail price (differs)
US$7,500
Not known
US$4,400

Case

Shape
Not known
Round
Not known
Diameter (differs)
40 mm
39.5 mm
40 mm
Thickness (differs)
12.9 mm
Not known
15.02 mm
Lug to lug
47 mm
Not known
Not known
Lug width (differs)
21 mm
Not known
20 mm
Material
Stainless steel
Stainless steel
Stainless steel
Bezel
Not known
Not known
Bidirectional rotating
Caseback (differs)
Display (sapphire)
Display (sapphire)
Screw-down
Crystal (differs)
Sapphire, Box, Anti-reflective inside
Sapphire
Sapphire, Domed, Anti-reflective on both sides
Crown (differs)
Screw-down
Not known
Push-pull
Water resistance
100 m
100 m
100 m
Weight
155 g
Not known
Not known

Movement

Type
Automatic
Automatic
Automatic
Origin
In-house
Not known
Not known
Power reserve (differs)
55 h
60 h
65 h
Frequency (differs)
36,000 vph (5 Hz)
36,000 vph (5 Hz)
28,800 vph (4 Hz)
Jewels (differs)
37
35
Not known
Functions (differs)
  • Screw-down crown
  • 37 jewels
  • Chronograph
  • Column wheel
  • Hours
  • Minutes
  • Small seconds
Not known
Complications (differs)
Not known
  • Chronograph
  • Small seconds
  • Chronograph

Dial

Colour (differs)
Deep blue
Blue
Blue
Pattern
Not known
Sunburst
Not known
Indices
Not known
Mixed
Not known
Hands
Not known
Baton
Not known

Bracelet

Type (differs)
Metal bracelet
Not known
Textile strap
Material
Stainless steel
Not known
Not known
Clasp
Folding clasp
Not known
Not known
Strap colour
Not known
Not known
Beige