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Discussion Starter · #1 ·
Hey all,

I was told that some here might like this. My day date corrector whel rocker thingy broke on my grand seiko 5646 and I hear its fairly common for that plastic piece to fail and crack.
I of course could not find the part online aside from scavanging from some other seikos like the 5606's. So I decided to try and fab one up out of brass.

Heres some bad photos
https://imgur.com/a/DlyeY

In action...
http://vimeo.com/93183687

I have to do some finishing on it but it works and I can now quick change my date once more.
 

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4,007 Posts
Thats good

Hey all,

I was told that some here might like this. My day date corrector whel rocker thingy broke on my grand seiko 5646 and I hear its fairly common for that plastic piece to fail and crack.
I of course could not find the part online aside from scavanging from some other seikos like the 5606's. So I decided to try and fab one up out of brass.

Heres some bad photos
https://imgur.com/a/DlyeY

In action...
http://vimeo.com/93183687

I have to do some finishing on it but it works and I can now quick change my date once more.
Nothing wrong with trying to machine something you really need.
And it works right ............ " Success ".:clap::13::goodjob:
 

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3,372 Posts
Hello and Welcome Darren,
Your filing skills are enviable- and I like the inventive approach you took, starting from a square to obtain the 4 teeth's rough profile. I've been toying with the idea of making a cutter profiled to the space between each tooth (something I will need to learn by doing), but your solution seems much quicker in a one-off situation, if one has the file-control you show. Well done, and please share with us any future projects!

Regards,
 

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9 Posts
Discussion Starter · #6 ·
Oh snap... Sorry Croolis forgot to respond!
http://i.imgur.com/XHDXLxz.jpg kinda like this...

Basically I worked from round stock then made a 1.8mm square at the tip... the center was drilled to 1.0 first then reamed out a little so that it was a little frictiony fitting. As for height I believe it was .6 in total... Just make sure it doesnt interfere with the day wheel above it

In all honesty I didnt take particularly great measurements. :\
As long as you get those teeth correct and centered though....
 

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252 Posts
Sorry for bringing up another old thread. I'm currently in search of this exact part for my GS 5646. I'm wondering if there are any updates on locating or reproducing a replacement for it. I've been searching all over the internet for it.

Thanks
 
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