How to read the:

• Model Code
  
• Batch Code
  
• Old Serial Code
  
• New Serial Code
  

Manual hand adjustment on premium models

Band & Bezel compatibility 5xxx series (old chart not complete)

Bluetooth synching (gadets & 3rd party apps"

• ESP32 Bluetooth Time Server
• Casio G-Shock Smart Sync
• GadgetBride
  Connect old bluetooth G-Shocks to modern phones (GB-5600B/GB-6900B/GB-X6900B)

How to delete bluetooth pairing

Water Resistance Rating

G-Shock Test Screens

Watch ranking (What's the best G-Shock)