Originally Posted by
walkerwek1958
I wouldn`t worry about it, I`d just dunk it in (bracelet, not watch head).
If the screws loosen you'll know about it because they'll feel loose. If they feel OK then they are OK.
One tip: fill the sonic bath with clean water, then take an old glass jar and put the detergent solution and watch in that. Put the lot in the sonic bath, change the water, in the jar, repeat etc etc. Far less messy than not using a glass jar. The ultrasonic vibration goes straight through the glass and transmits through the cleaning medium.
Paul