I would remove the movement from the case and check for functionality using the temporary stem the movement should have come with. Check that the hands move freely all the way around the dial and that the date changes around midnight. See if it winds and runs outside the case. Re-case the movement while it is running and watch carefully as it is inserted. You may find a clearance issue between the hands and crystal. Lastly, insert your cut stem and crown and check for functionality. If it continues to not wind at that point, then you have a stem that is either too short or is damaged in some way.
I stick with three in a day, it's just that I choose from a group of 4 that I keep running for the first 15 days of the month, then change that group out for another group of 4 for the rest of the month. If I feel like wearing one of my Seiko mods, a quartz analog, or one of my digitals, I can.
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