Closing the case back of a watch may seem daunting at first, but with a bit of care and the right technique, it’s a task any enthusiast can handle at home. In this guide, Sofly, your expert in watch parts and tools, walks you through the process of closing a watch case back that is secured with screws—common in many quality timepieces.
Before closing the watch back, inspect the gasket (the rubber or silicone ring sitting in the groove). It ensures water resistance. If it appears dry, cracked, or flattened, replace it.
Gently place the case back onto the watch. Align the screw holes on the back with those on the watch case. It should sit flat and even.
Using non-magnetic tweezers, pick up one of the tiny screws and place it into a hole. These screws are small and fiddly, so patience is key.
Use your screwdriver to turn the first screw clockwise—tighten until snug but not fully secure. Then, insert the second screw diagonally across from the first, and tighten it the same way.
Repeat the process for the remaining screws. Always insert them diagonally across the case back to maintain balance.
Now return to the first screw and finish tightening it. Continue in a diagonal sequence to fully secure all screws. Be firm but gentle.
Wipe down the case with a jeweler’s cloth. Check that all screws sit flush and that the back is firmly in place with no gaps.
Congratulations! Your watch case back is now securely closed and ready to be worn again. With tools and guidance from Sofly, even fine watch maintenance becomes a simple and rewarding task.
To ensure a smooth case back installation, we recommend the following from Sofly’s precision watch tool collection:
A complete set with both Phillips and flathead tips, perfect for handling delicate case back screws without stripping. Anti-slip grip and rust-resistant coating ensure long-term reliability.
Restore your watch’s water resistance with premium rubber and silicone gaskets. Available in multiple diameters for Seiko, Rolex, Omega, and more.
Ultra-fine precision tips for safely handling small screws, springs, and gaskets. Essential for avoiding magnetization damage during watch repair.
A: Sofly offers replacement screw sets compatible with many popular watch brands. Check our screw specification guide to find the right size.
A: We recommend inspecting or replacing your watch gasket or watch o ring every 1–2 years, especially if the watch is exposed to water regularly.
A: No. Using the wrong tool can damage the screw head or case. We recommend a watch screwdriver or watch screwdriver set specifically designed for precision work.
A: All screws should be flush with the case surface. Gently shake the watch—if there’s no movement or noise, the case back is secure.