Casio G-Shock GA-010-2A Men's Analog-Digital Blue Resin Watch

The Casio G-Shock GA-010-2A is a men's analog-digital watch with a blue bio-based resin case and strap, a Carbon Core Guard frame and 200-meter water resistance. It suits active wearers who want travel timekeeping, a 10-year battery and shock-resistant construction in one everyday sports watch.

The GA-010-2A combines analog hands with a digital readout, so you can glance at the time and still reach stopwatch, timer and alarm functions. Its case and strap are molded from bio-based resin, a material that uses organic content and stays flexible in cold conditions. Carbon Core Guard surrounds the module with a carbon-fiber reinforced frame to absorb impacts, while mineral glass protects the dial. A CR2025 battery is rated for about ten years, and World Time covers 48 cities across 31 time zones. The full auto calendar runs to 2099.

Key features and benefits of the Casio G-Shock GA-010-2A

• Analog-digital display: Hour and minute hands sit around a digital screen that shows seconds, date and functions. You can read the time quickly, open precise timing tools and rely on a full auto calendar to 2099, while mineral glass protects the dial.
• Blue bio-based resin case and strap: The case and band are made from resin that includes organic materials, in blue and light blue. The material stays flexible in cold and resists cracking from UV exposure, so it suits daily outdoor use.
• Carbon Core Guard structure: A carbon-fiber reinforced frame wraps the watch module. It absorbs knocks and helps keep the watch lighter than a metal-cased design.
• Shock-resistant construction: The protected module and resilient case are built to handle drops, vibration and sudden acceleration. That makes the watch suitable for high-impact activities without extra care.
• 200-meter water resistance: The watch is rated to 20 bar, which covers swimming, snorkeling and recreational diving. A screw-down case back and sealed buttons help keep the seal under pressure, and you should avoid pressing buttons underwater.
• 10-year battery (CR2025): One lithium coin cell powers the watch for approximately ten years under normal use. Fewer battery changes mean less maintenance, and replacement should be done by a qualified watch technician to preserve water resistance.
• World Time for 48 cities: World Time shows the time in 48 cities across 31 time zones at the press of a button. It helps travelers and people working across regions check another zone without reaching for a phone.
• 1/100-second stopwatch: The stopwatch measures to one-hundredth of a second up to 24 hours. It includes split-time capability, which is useful for interval training, cooking or any task that needs precise timing.
• Countdown timer: You can set a countdown from one minute to 24 hours and switch on auto-repeat. It is handy for workouts, parking limits and reminder intervals.
• Five daily alarms with snooze: Five separate alarm times can be set, and one alarm has a snooze that repeats every five minutes. This helps you keep to a schedule through the day.
• Super Illuminator LED light: A high-brightness LED lights the whole face, and the afterglow stays on for a few seconds after release. The display remains readable in total darkness.
• Hand Shift feature: A button press moves the analog hands away from the digital display. They return automatically after a short time or with another press, so digital data stays easy to read.

Who the watch is for

The Casio G-Shock GA-010-2A suits men who want one watch for sport, travel and daily work. Its shock-resistant build and 200-meter water resistance suit swimmers, hikers and tradespeople, while World Time and the 10-year battery help frequent travelers and owners who prefer low maintenance. The blue bio-based resin case gives it a casual look that pairs with athletic and everyday clothing.

• Daily commuting and desk work where durability matters
• Swimming, snorkeling and pool training sessions
• Hiking, camping and backcountry navigation
• International travel across multiple time zones
• Weekend sports such as running, cycling or gym sessions

Less suitable if: you prefer a slim, lightweight dress watch for formal occasions, as the resin case and analog-digital module create a relatively bulky profile.

Watch specifications

Using and caring for the Casio G-Shock GA-010-2A

Rinse the Casio G-Shock GA-010-2A with fresh water after saltwater or chlorine exposure, then dry it with a soft cloth. Press the light button in the dark to start the Super Illuminator, and use Hand Shift when you need a clear view of the digital screen. Keep buttons untouched underwater so the 200-meter seal stays intact. Clean the resin strap with mild soap and water, and avoid solvents or abrasive cleaners.

• Clean the strap with mild soap and water; avoid solvents or abrasive cleaners.
• Store the watch in a cool, dry place away from strong magnetic fields.
• Replace the CR2025 battery with a qualified watch technician to preserve water resistance.
• Check the strap pins periodically for wear if the watch sees heavy daily use.

How to choose the right men's watch

Choosing an analog-digital watch comes down to water resistance, battery life, case material and the functions you will use. The Casio G-Shock GA-010-2A offers 200-meter water resistance for swimming and snorkeling, a CR2025 battery rated for about ten years, and a bio-based resin case with Carbon Core Guard for shock resistance. Its function set includes World Time for 48 cities, a 1/100-second stopwatch, a 24-hour timer and five daily alarms. If those values match your activities, the watch covers sport, travel and everyday wear.

Frequently asked questions

What is the Casio G-Shock GA-010-2A made of?

The case and strap are made from blue bio-based resin, and a Carbon Core Guard frame sits around the module. The crystal is mineral glass.

How water resistant is this watch?

It is rated to 200 meters (20 bar), which suits swimming, snorkeling and recreational diving. It is not intended for scuba diving with mixed gases.

How long does the battery last?

A CR2025 lithium battery is rated for approximately ten years under normal use. Have it replaced by a qualified watch technician to protect the water resistance.

Does it show multiple time zones?

World Time covers 48 cities across 31 time zones. You can check another zone with a button press instead of using a phone.

Can I use the stopwatch for interval training?

The stopwatch measures to 1/100 second up to 24 hours and includes split-time capability. That makes it useful for interval training and other precision timing.

What does the Hand Shift feature do?

Hand Shift moves the analog hands away from the digital display at the press of a button. The hands return automatically after a short time or with another press.

Is the strap replaceable?

The bio-based resin strap uses standard spring bars, so a compatible 22 mm strap can replace it. Check that the replacement strap is the same 22 mm width.

How do I set the alarms?

You can set five daily alarms, and one of them has a snooze that repeats every five minutes. Alarm setup is handled through the watch's alarm mode with the mode and adjust buttons.