Alright,
Thank you both. I will see if I have anything close to a large handle screwdriver described by OldTom. Meanwhile, is ITEM "FB-210" on this website the correct tool for opening the case backs to the 0662-5009?
http://www.tztoolshop.com/page78.htmlThe reason I need to open this watch is because it is broke. The seconds segments are still flashing, and when I push the light button on the watch, the seconds reset to "00." In order to fix this problem, I would need to get the case back open, and I would need to look at the "Stem Spring." I think it may be fixed by removing the stem spring, and adding some greese to it. Somehow the stem spring, or the stem has been pushed-in too far or pulled out to far. This caused the watch to be placed into "Set Mode" permanently.
Anyway.
Thank you
- Patrick