G-Shock GA-900-1A

G-SHOCK GA-900

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7.2
Expert ScoreRead review

With its decagonal bezel, bezel bumpers, and front screws, the G-Shock GA-900 has an industrial heavy duty style and offers the best battery life (approximately 7 years) of any non-solar analog-digital G-Shock watch (along with the revived AW-500).

 

7 Year Battery

$130.00

Categories: , Tags: , ,

List Price: $130 (GA900-1A)

Size: Large
Dimensions (L x W x H): 52.8 × 49.5 × 16.9 mm
Weight: 65 grams
Module: 5637 (instruction manual at casio.com)
Battery Type (Lifespan): CR2016 (approx. 7 years)
Series Launch Year: 2021

Notable Features: World Time, 1/100-Second Stopwatch, Timer (60 Minutes), 5 Daily Alarms (1 Snooze), LED Light

See full specifications for GA900-1A under “Additional information” tab above.

Suggested Uses: Extreme Sports, Outdoors, Streetwear

Latest GA-900 News

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Some specs for individual models may differ within a series, such as price, materials, weight, etc. Dollar prices are in U.S. currency unless otherwise noted. Click the link icons in the gallery images for articles on specific models. Gallery images with "(casio.com)" are linked to an official Casio product page. Follow your country's official G-Shock site (gshock.casio.com) for more release information.
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7.2Expert Score
G-Shock GA-900 Rating by G-Central
Despite having the best battery life for a non-solar analog-digital G-Shock, it's difficult to recommend the GA-900 as a tool watch due to its readability issues.
Build
7
Functions
7.5
Value
7
PROS
  • Very long battery life (7 years) for an analog-digital model.
  • A new type of heavy duty style with some interesting colorways available.
CONS
  • Hand design does not lend itself well to quick reading.
  • No lume on the hands or dial.
  • No backlight for LCD display.

Specification: G-SHOCK GA-900

Size

Dimensions (L x W x H mm)

52.8 x 49.5 x 16.9
Weight (g)

65
Protection

,

Case Material

Bezel Material

Band Material

Resin
Glass

Battery

CR2016
Battery Life (Approx.)

World Time

,

World Time Zones

31
World Time Cities

48 + UTC, Direct Call UTC Time Zone
Daylight Saving Time

Stopwatch

, ,

Stopwatch Unit

Stopwatch Max Range

Measuring Modes

1st-2nd place times, elapsed time, split time
Countdown Timer

Countdown Timer Unit

1/10 second
Countdown Range

Countdown Setting Range

Countdown Setting Increment (Lowest)

1 minute
Alarm

Hourly Time Signal

Hourly Time Signal
Light Type

, ,

Light Color

White
Calendar

Full Auto Calendar to 2099
Button Tone On/Off

Button Tone On/Off
Hand Shift

Hand Shift
12/24-Hour Format

12/24-Hour Format
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