Gently lift the rubber gasket. Use your tweezers to pop the white plastic module out of the resin case.
Any internal modification, especially the introduction of liquids, immediately voids the manufacturer's warranty and should only be considered by those with advanced technical experience. Aesthetic and External Upgrades
Engaging in hardware modification carries significant risks that every hobbyist should consider:
Would you like step-by-step instructions for a specific mod (e.g., crystal replacement or backlight swap)? casio w-800h mod
By spending just a little time modifying your Casio W-800H, you turn a basic $20 watch into a custom, feature-packed daily tool that stands out from the crowd. If you want to customize your watch, let me know:
Buy (often 3D-printed or molded plastic made for Casio watches).
Look at the back of the PCB. Locate the small solder pads labeled J1 and J2 . Gently lift the rubber gasket
Some users use specific solvents to remove the printed text from the resin bezel, creating a "stealth" appearance. This requires care to ensure the solvent does not damage the resin finish. Standard Configuration Post-Modification Potential Countdown Timer Not Active Functional (Requires PCB modification) Stopwatch Water Resistance 100m Factory Rated Variable (Dependent on seal integrity) Display Type Standard LCD Improved contrast (If hydro-modded)
Take the module out of the watch case. Use your razor blade to carefully peel off the top layer of polarizing film from the glass LCD screen. Go slowly to avoid scratching the glass.
Once you master the internal module, you can customize the external look of your W-800H. 1. The Negative Display Mod Look at the back of the PCB
Hydro modding involves filling the entire watch case with .
Buy a 22mm NATO strap. Use an X-Acto knife to carefully notch out 2mm from both sides of the strap exactly where it passes through the watch lugs. Seal the cut nylon edges with a lighter flame to prevent fraying. Conclusion
: Filling the watch case with silicone oil. This significantly improves legibility
This involves replacing the factory polarizing film on the LCD. A negative display shows light-colored digits on a dark background, giving the watch a more tactical or modern appearance.