This may be one for our watchmaking friends.... If I'm pretty sure a watch is water tight, I've always periodically run a whole watch through a small domestic ultrasonic cleaner. My understanding is that the ultrasonic effect needs water to work, so the internals of the watch are effectively experiencing mild vibration like the would in a car or similar. Does anyone else have a viewpoint on this? On an unrelated note my new gmt is now sparkly. Its disturbing to think you are watching the murky mist of someone elses dead skin cells bubbling away...
Not something I would recommend. But it really depends on what you mean by an ultrasonic cleaner - many machines used for home cleaning aren't really ultrasonic. Cheers, Al
I do have an inexpensive ultrasonic from Aldi, use it on bracelets, cases etc. and all the girls bright and sparkly bits and pieces. Works really well, warm water and a little washing up liquid and the crud that is left behind is quite frightening. Would not be too keen putting a watch complete in, when you watch some pieces vibrating away
If it is a mechanical watch it will affect the timekeeping if you dip it in to ultrasonic tank, with quartz watches it's ok to do it.
Those "ultrasonics" are fine for the bracelets. But what's wrong with an old toothbrush and some dish soap for the watch case?
Looks like a salad spinner - anyway, I can't tell if it's a proper ultrasonic from the photo, but again I would not recommend using it on an assembled watch. Cheers, Al