Real vs. Fake G-Shock: All the Signs You Need to Know

As an Amazon Associate I earn from qualifying purchases.

Authentic G-Shock Watch Verification: Tips to Ensure Originality

Casio G-Shock watches are legendary for their durability and style. But with their popularity comes the unfortunate reality of counterfeits. These fakes can look deceptively similar, but lack the quality and functionality of a genuine G-Shock.

If you’re looking to buy a G-Shock, or want to verify the authenticity of one you already own, fear not! This guide will equip you with the knowledge to spot a fake and ensure you get the real deal.

The Three Button Test (Quick and Easy):

This is the fastest way to check authenticity.  Simply press the two upper left buttons and the bottom right button simultaneously on your G-Shock. If the display lights up completely with all pixels showing, your watch is likely genuine. Fake G-Shocks often won’t react to this button combination.

Packaging and Documentation:

A genuine G-Shock will come in a well-made box with clear Casio branding and the model number. The instruction manual should be printed on high-quality paper with clear instructions in proper English.  Look for typos or grammatical errors in the manual, a telltale sign of a fake.

Verify Serial Numbers:

Every real G-Shock watch has a unique serial number. You can verify it with Casio. Check the serial number on the case back of the watch. Compare it to the official records from Casio. You can check the serial number’s authenticity on Casio’s official website. Or, you can call customer service.

Scrutinize the Watch:

Genuine G-Shocks have high-quality finishes. Check for any imperfections in the molding,  uneven printing on the dial, or  sloppy stitching on the band. Genuine G-Shock  buckles are typically shiny and have “CASIO CHINA” engraved on the back. Fakes often have a matte finish and say “CASIO JAPAN”.

Weight Matters:

Casio lists the weight of each G-Shock model on their official website.  If you have a scale, weigh your watch and compare it to the listed weight.  A significant difference (more than 10-15 grams) leans towards a fake.

Light it Up:

Most genuine G-Shocks have an auto LED light feature.  When activated (usually by tilting the watch or pressing a specific button), the light should illuminate the entire display brightly and evenly. Fake watches may have a weak or flickering light, or lack the auto light function altogether.


Genuine G-Shock watches use high-quality luminous paint on the hands and hour markers. This should glow brightly in low light conditions for an extended period. Fakes often have a weak or non-existent afterglow.

Functionality Check:

G-Shocks are known for their advanced features like alarms, timers, and world time.  Test all the functions of your watch and ensure they work smoothly and accurately. Fake watches may have limited or malfunctioning features.

Buy from Authorized Retailers:

The safest way to ensure you get a genuine G-Shock is to purchase it from an authorized Casio retailer.  They will carry only authentic products and can provide you with a warranty card and receipt.


By following these tips, you’ll be well on your way to spotting a fake G-Shock and getting your hands on a genuine timepiece built to last. Remember, a little extra effort upfront can save you money and disappointment in the long run. Happy shopping!

Read Next: Celebrities Who Love G-Shock Watches: Unexpected Timepiece Choices

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top