Casio G-Shock Gravitymaster watch, gray, GWR-B3000B-8AER

Gray Casio G-Shock Gravitymaster Watch with Tough Solar, Sapphire Crystal and Bluetooth

The Gravitymaster is an aviation-oriented watch from the G-SHOCK Master of G series, with a case made of bio-based carbon fiber and stainless steel. A dark bezel surrounds the angular case, and four visible screws emphasize the watch's technical look. The dark, micro-textured dial has three sub-dials and a red accent hand at the bottom. The case is 47.3 mm wide and 14.1 mm thick, and the watch weighs 102 g. The soft bio-based urethane strap fits wrists of 145–215 mm.

Tough Solar charges the watch with light. The time is corrected with a Multi Band 6 radio signal and a Bluetooth connection through the Casio Watches app, and the app includes a flight log and a phone finder. The watch has a chronograph, alarm, world time, UTC quick selection and date display. The sapphire crystal is domed and anti-reflective. Water resistance is 200 m / 20 atm, so the watch is suitable for swimming and free diving but not for scuba diving. G-SHOCK began in 1983, developed by Kikuo Ibe, and shock resistance is the foundation of the series.

Product number: GWR-B3000B-8AER
Brand: Casio
Series: G-SHOCK Master of G, Gravitymaster
Category: Men's watches
Movement: Tough Solar, analog TOUGH MVT.2
Features: Timing / chronograph, alarm, world time, date display, UTC quick selection, flight log, LED light
Time setting: Multi Band 6 radio signal and Bluetooth smartphone connection
Crystal: Domed sapphire crystal, anti-reflective coating
Case material: Bio-based carbon fiber / stainless steel
Case width: 47.3 mm
Case thickness: 14.1 mm
Dimensions (H × L × D): 56.7 × 47.3 × 14.1 mm
Weight: 102 g
Strap material: Urethane (bio-based resin)
Strap length: 145–215 mm
Water resistance: 200 m / 20 atm
Battery life: About 5 months in normal use without light, up to 22 months in power saving mode when fully charged

Frequently asked questions

Can you swim and dive with the watch?
Water resistance is 200 m / 20 atm, so the watch is suitable for swimming, water sports, snorkeling and free diving. It is not suitable for scuba diving, because the watch does not have a Diver's marking.

Does the watch need a battery change?
No, the watch gets its power from light with a Tough Solar cell. When fully charged, the battery lasts about 5 months in normal use without light and up to 22 months in power saving mode.

What size wrist does the watch fit?
The strap fits wrists of 145–215 mm. The case width is 47.3 mm and the thickness is 14.1 mm.

How does the watch keep the correct time?
The watch corrects the time with a Multi Band 6 radio signal. The Bluetooth connection to the Casio Watches app also syncs the time from your phone.