Felipe Fumeni, A member on the Oakley Enthusiasts Facebook page recently mentioned that he replaced his Time Bomb capacitor recently. While these are supposed to last quite a while, his died after about 10 years and needed a swap. I asked him if he'd mind if I posted this information here, so he took the time to write up some steps and take some pictures. Below is his write-up. I can redirect questions, or see if he minds stopping by.
I hope these photos and explanation can help our friends collectors and connoisseurs of watch Time Bomb 1.
The Oakley Time Bomb uses a movement partially or fully similar to that in Seiko Kinetic watches. These watches used a capacitor (SL920) that was later deemed defective- unable to hold a charge for more than 15minutes in some cases. A replacement (TC920S) has been issued with far superior performance.
Looking at the pictures, follow the instructions starting from 1 thru 3. The other photos show a comparison between the old and new capacitors, as well as what should be replaced.
Work in a clean, dust-free environment with good lighting and appropriate tools.
- Pull the crown out to the second position, stopping the watch.
- Remove the caseback screws in the numerical order seen on the picture (In a "X" order), so as to not damage screw threads. Use this same procedure when closing the watch. First, lightly tighten all four screws in the "X" order, then tighten all four screws further to ensure a seal.
Warning: avoid contact of the tools with any other parts of the watch movement.
1. Hold the "inertial generator" lightly, and using an appropriate screwdriver, remove the central screw. Use watchmaker's tweezers to carefully remove and store it in a safe place.
2. remove the rotor wheel
3 and 4. Remove the screws holding down the capacitor plate. Warning- The screw can "jump" when removed due to spring pressure of the plate. Use caution.
5. Remove the capacitor plate
6. Remove the capacitor insulator (orange)
7. Using insulated
tweezers, remove the defective capacitor (SL920), and replace with the new capacitor (TC920S), as well as the new insulator and plate.
Follow steps in reverse order to reassemble the watch.
Before closing the watch, ensure the inertial generator is moving freely, and push the crown back in and ensure the watch is running properly.
Below is a link to swapping the Seiko capacitor, which is needed, and some part number suggestions.