Casio · G-Shock · G-Shock GA-2000 Carbon Core Guard
Maxquijano · CC BY-SA 4.0
Casio G-Shock Current

GA-900A

Casio G-Shock GA-900A

Diameter
49.5 mm
Movement
Quartz
Case
Resin
Produced
unknown

Specifications

Value · source
Production start year
unknown
no source
Production end year
unknown
no source
Status
Current
Manufacturer 70% source
Retail price
unknown
no source
Case material
resin
Manufacturer 85% source
Diameter (mm)
49.5
Manufacturer 70% source
Movement type
Quartz
Manufacturer 85% source

Fit & dimensions

Value · source
Lug to lug (mm)
52.8
Manufacturer 85% source
Case thickness (mm)
16.9
Manufacturer 85% source
Lug width (mm)
unknown
no source
Water resistance (m)
200
Manufacturer 85% source
Crystal material
Mineral
Manufacturer 85% source
Caseback
unknown
no source

Photos

Freely licensed photos from Wikimedia Commons, credited to their authors. These show the G-Shock family — they may show a different reference.

Casio · G-Shock · G-Shock GA-2000 Carbon Core Guard
Maxquijano · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Hand watch-Casio G-Shock
ГП · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-SHOCK FROGMAN GWF-1000BP-1JF 01 - edit
Kansai explorer · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-SHOCK FROGMAN GWF-1000BP-1JF 01
Kansai explorer · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-SHOCK FROGMAN GWF-1000BP-1JF 01a
Kansai explorer · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-SHOCK FROGMAN GWF-1000BP-1JF 02
Kansai explorer · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-Shock GW-9400-1ER 'Rangeman' - triple sensor
File:Odolné digitálne hodinky.jpg: Markomurko derivative work: Pittigrilli · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-Shock GW-9400-1ER 'Rangeman' w. triple sensor
Markomurko · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio G-Shock Master of G Rangeman GW-9400J-1JF
BrightOrion · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · Casio rangeman gpr-b1000-1er
KoeppiK · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · 2006090201 Casio-G-shock.Mod.3017-GW-056E 2006
VSchagow · CC BY-SA 4.0 · Wikimedia Commons
Casio · G-Shock · 2021101601 Casio-G-shock.Mod.3017-GW-056E Refoto (2006) 2021
VSchagow · CC BY-SA 4.0 · Wikimedia Commons

Calibers

Casio 5637

Jewels
unknown
no source
Frequency (vph)
unknown
no source
Power reserve (hours)
unknown
no source
Winding
unknown
no source

Variants

GA-900A-1A9

Dial color
unknown
no source
Bezel
unknown
no source
Bracelet
resin band
Manufacturer 85% source

Frequently asked questions

What size is the Casio GA-900A?

The Casio GA-900A measures 49.5 mm in diameter (source: manufacturer).

What movement does the Casio GA-900A use?

The Casio GA-900A uses a quartz movement (source: manufacturer).

Which caliber is in the Casio GA-900A?

The Casio GA-900A is listed with the Casio 5637 caliber.

What is the Casio GA-900A case made of?

The Casio GA-900A has a resin case (source: manufacturer).

Is the Casio GA-900A still in production?

Yes. The Casio GA-900A is listed as current (source: manufacturer).