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Advancing the day with the crown - Seiko 4336


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Hi, it's my first post here in watchrepairtalk.

I'm trying to get a Seiko 4336 quartz working again and having trouble with the date setting mechanism. Although this is a quartz watch I believe the parts are similar to mechanical Seikos of the 70s era.

I'm sorry I don't know the part names. I have the technical document for this movement but the part names are not clear on it.

Anyway, when turning the crown counterclockwise the gear on the right doesn't engage the gear on the left (in blue circle), which should turn the day wheel. I can get the left gear to turn partially if I align it just so, but it won't even make a complete revolution. Shouldn't it turn continuously as I turn the crown? I can't work out if I have some sort of alignment problem or if the parts are worn, or something else. I thought maybe it would work properly when the day wheel was in place but no dice. I should add that I didn't ever take these parts off the watch when doing my clean and so on.

 

Screenshot 2024-10-15 at 9.53.52 AM.png

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1 hour ago, AndyGSi said:

Welcome to the forum.

Difficult to see from the photo but it does look like the 3 pointed star part
of the setting lever isn't seated correctly and does look a little worn.

It also depends what's happening with the gears underneath that rotate it.

Ya sorry you can't tell more from the photo. I have a video of this but I can't upload it here.

I also felt like the three point wheel wasn't seated, as I found myself pressing it down with the tweezers all the time. I should probably just poke around and find replacements for both of those gears - pretty cheap if you can find them.

I'll double check how everything looks on the other side, but from everything I can tell, the mechanical function of the watch is fine otherwise. Thanks for the reply.

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1 hour ago, paulskiogorki said:

I should probably just poke around and find replacements for both of those gears - pretty cheap if you can find them.

The setting lever is a complete unit with the 3 pointed star gear so isn't available as a separate item.

The 5 pointed star is part of the calendar plate so again not available as a separate item.

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