Seiko 6309A movement

What I know is wrong with it

Sold as a donor watch, not a runner. The movement is missing its balance wheel, so it does not tick. Bought mainly for its original bracelet, which is intact and usable. The rest of the case, dial, and movement are available for parts.

No watch here has been pressure-tested. A period WATERPROOF or WATER RESISTANT stamp says nothing about the seals today, so treat every watch on this site as not water resistant.