I have aquired 620 movements for as little as three bucks on a 99cent start. I would put base metal cases closer to 35 to 60.
Sad in the way as 625 is a solid well made easy to work on no frills movement. Only two hands so not even a sweep combination. No provison for even a sub second dial. At 18mm it is a bit on the larger size for ladies and often used in the smaller gent's watches.
There are some nice case designs, especially with square and rectangle cased dress watches, now considered unisex.
They can be a nice starter watch. Good for practice as well.
The poor relation no one likes, but still has the family look.