Can I use water with a slight amount of dish soap in an ultrasonic cleaner to clean my watch?

Recently purchased my first watch, a Waltham grade 81 pocket watch, and wanna dip my toes in watch repair. I've heard as long as you don't keep watch parts (never the hair spring or balance) for *too long* in water and rinse them in IPA the parts should be fine. Is there a safer way to clean a watch without purpose made watch cleaners? Any insight is appreciated.