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G-SHOCK GWR-B1000 Gravitymaster

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The G-Shock GWR-B1000 with a carbon monocoque case was the first Gravitymaster model with a Carbon Core Guard case. The size was significantly scaled down from the very large GPW-2000, and the GWR-B1000 is a very lightweight watch that can comfortably fit a variety of wrist sizes. The GWR-B1000-1A1JF is currently available in Japan.


Multi-Band 6 Bluetooth Made in Japan

The Gravitymaster GWR-B1000 series is discontinued as of 2024, according to Casio Japan.

Size: Medium
Dimensions (L x W x H): 46.2 x 46.3 x 16.9 mm
Weight: 72 grams
Module: 5588 (instruction manual at casio.com)
Battery Type (Lifespan): Solar Rechargeable
Series Launch Year: 2019

Notable Features: Triple G Resist, Rust Resistant, Tough Solar, Multi-Band 6, Bluetooth Mobile Link, Dual Time, 1-Second Stopwatch, Daily Alarm, LED Light

See full specifications for GWR-B1000-1A1JF under “Additional information” tab above.

Suggested Uses: Fashion, Outdoors, Travel

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Latest GWR-B1000 News

Recent GWR-B1000 Releases:

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View all GWR-B1000 articles on G-Central

GWR-B1000 Promotional Video:


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Some specifications (price, materials, weight, Neobrite, etc.) for individual models may vary within a series. Some models may not be available in all countries. Visit the linked articles in gallery images for more info on specific models.
About The Specs Catalog | Features Glossary | Specs Home

Specification: G-SHOCK GWR-B1000 Gravitymaster


Dimensions (L x W x H mm)

46.2 x 46.3 x 16.9

Weight (g)



, , ,

Case Material


Bezel Material

Band Material

Carbon Fiber Insert, Resin


, ,



Carbon Core Guard



Low Battery Alert

Tough Solar

Battery Level Indicator

Battery Level Indicator

Power Saving

Power Save

Multi-Band 6 (Auto Time Correction)



Smartphone App

Bluetooth Functions

Alarm Settings, Auto Summer Time (DST) Switching, Auto Time Correction, Hand Alignment Correction, One-Touch Time Correction, Phone Finder, Timer Settings, World Time (approx. 300 cities)

World Time

World Time Zones


Daylight Saving Time



, ,

Stopwatch Unit

Stopwatch Max Range

Measuring Modes

elapsed time

Countdown Timer

Countdown Timer Unit

1 second

Countdown Range

Countdown Setting Range

Countdown Setting Increment (Lowest)

1 minute


Light Type

, ,

Light Color



Full Auto Calendar to 2099

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