What to do with all my old wrist watches

https://www.pinterest.com/explore/old-watches/?lp=true

Sell them on Ebay. I sell a lot of stuff on Ebay. You can take them to a reputable jeweler and see if they have any value. I also would be interested in them.

i have seen people take them apart and make things out of the gears and stuff

Yep! Steam Punk jewelry.

At a craft show I saw a bracelet made from the actual watch part, taken off the band. They put them together in a row with jewelry "rings." I have saved up enough ladies watches to make one...just haven't done it yet!

Put working batteries in them and donate them to a thrift store if you do not want them anymore.

Old is not necessarily valuable. I have a cache of old wrist watches and they would not be worth selling on ebay. I will wait for a yard sale or maybe give them to my granddaughter.

Try to fix them

It is possible to change parts and movements if they are old and pass for antiques. The crowns of mechanical and quartz watches function differently. Suppose in quartz, the movement of the crown to the extreme right position means the disconnection from the battery (i.e., the movement stops) in a mechanical watch. In that case, the same position is for setting the date. My watch is wound via the watch winder, and that's it. However, if the watch has one, turning the crown backward (counterclockwise) may damage the calendar mechanism. But you can change it any way