I'm selling a Seiko 7S36 movement that I removed from a brand-new Seiko 5 watch.
21,600 BPH/ 6 BPS.
It looks to be in excellent condition.
It does NOT include the stem and crown.
You can buy this if you need a Seiko 7S36 movement for your watch, experimentation with how watch movements work, or source it for parts.
The 7S36 movement is exactly the same as the 7S26C movement, except that it includes an extra jewel or jewels making it more robust than the 7S26C movement.