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

GR-B300

Casio G-Shock GR-B300

Diameter
54.7 mm
Movement
Solar
Case
Bio-based carbon
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
bio-based carbon
Manufacturer 85% source
Diameter (mm)
54.7
Manufacturer 70% source
Movement type
Solar
Manufacturer 85% source

Fit & dimensions

Value · source
Lug to lug (mm)
59
Manufacturer 85% source
Case thickness (mm)
15.7
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 5719

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

Variants

GR-B300-1A

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

GR-B300-1A4

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

GR-B300-8A2

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

Frequently asked questions

What size is the Casio GR-B300?

The Casio GR-B300 measures 54.7 mm in diameter (source: manufacturer).

What movement does the Casio GR-B300 use?

The Casio GR-B300 uses a solar movement (source: manufacturer).

Which caliber is in the Casio GR-B300?

The Casio GR-B300 is listed with the Casio 5719 caliber.

What is the Casio GR-B300 case made of?

The Casio GR-B300 has a bio-based carbon case (source: manufacturer).

Is the Casio GR-B300 still in production?

Yes. The Casio GR-B300 is listed as current (source: manufacturer).