Calendar works - Seiko 2107A

skinnb1

NAWCC Member
Oct 4, 2015
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I have a ladies Seiko 2107A movement which is particularly small. I have serviced the movement and re-assembled all but the calendar works. when I look at the pictures I took before disassembly the fingers in the calendar works seem to be misplaced. Perhaps this happened when I removed the cover plate. In any case I don't understand how the mechanism works and the fingers seem to be particularly fragile so I am not sure how the finger on the date wheel is meant to be positioned. My guess is that the hole in the finger goes on one post and the spring goes round the larger post to be hooked onto the second small post. I assume that the 'jaw' in the other finger should engage with its post.

If someone could explain how it is meant to work or explain how the parts interact I would be grateful.

Thanks for any help you can give.
calendar.jpg
 

everydaycats

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Aug 11, 2011
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Mexico Beach, FL
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I have a ladies Seiko 2107A movement which is particularly small. I have serviced the movement and re-assembled all but the calendar works. when I look at the pictures I took before disassembly the fingers in the calendar works seem to be misplaced. Perhaps this happened when I removed the cover plate. In any case I don't understand how the mechanism works and the fingers seem to be particularly fragile so I am not sure how the finger on the date wheel is meant to be positioned. My guess is that the hole in the finger goes on one post and the spring goes round the larger post to be hooked onto the second small post. I assume that the 'jaw' in the other finger should engage with its post.

If someone could explain how it is meant to work or explain how the parts interact I would be grateful.

Thanks for any help you can give.
View attachment 713106
The post is supposed to be in the valley just above where it is now...

calendar.jpg dateseiko.jpg
 

skinnb1

NAWCC Member
Oct 4, 2015
85
17
8
Country
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