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Irishcain

By Irishcain
in Watch Repairs Help & Advice

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Irishcain Watch Enthusiast

Irishcain

Posted
Posted

I've been given this by a friend and have a couple of problems. 1- I can't figure out the movement (it's supposed to be a 7750 with date at 3, but it doesn't fit any schematic I know, including some Asian), and 2- I can't figure out how to release the stem. No screw, no pusher, nothing that shows up no matter stem position. Any advice or direction would be helpful at this point.

post-668-0-32473600-1424031834_thumb.jpg

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clockboy Distinguished Member

clockboy

Posted
Posted (edited)

It looks like this where it releases if it moves when you move the stem then it will need pushing down with a pokey thing at the same time as moving the stem. Also looks like a Seiko with the auto wind removed

 

 

post-234-0-50380300-1424032394.png

Edited by clockboy
bobm12 Distinguished Member

bobm12

Posted
Posted

Hi irishcain,

 

Check where the arrow is and push in and out the stem. if it moves, that's the lever you press down. You may need to have the crown/stem in a certain in/out position for it to work.

 

post-253-0-75737200-1424032497_thumb.jpg

 

Hope it helps,

 

Bob

Irishcain Watch Enthusiast

Irishcain

Posted
  • Author
Posted

Hi irishcain,

 

Check where the arrow is and push in and out the stem. if it moves, that's the lever you press down. You may need to have the crown/stem in a certain in/out position for it to work.

 

attachicon.giflever.jpg

 

Hope it helps,

 

Bob

Bob,

That's waht I thought at first too, but it turns out to be a pivot arm.

  

It looks like this where it releases if it moves when you move the stem then it will need pushing down with a pokey thing at the same time as moving the stem. Also looks like a Seiko with the auto wind removed

That's a scratch on the plate, I need a better camera.
Geo Distinguished Member

Geo

Posted
Posted

If you push and pull the stem does it expose the other end of the lever with the pivot that Bob mentioned? If it does, try pushing down on the exposed end to see if that releases the stem.

Irishcain Watch Enthusiast

Irishcain

Posted
  • Author
Posted

Looks like Chinese knock off based on a Seiko movement, what's the watch by the way?

No name on the dial, though there is a unicorn and a lion. I'm guessing it was a kids watch.

Irishcain Watch Enthusiast

Irishcain

Posted
  • Author
Posted

If you push and pull the stem does it expose the other end of the lever with the pivot that Bob mentioned? If it does, try pushing down on the exposed end to see if that releases the stem.

It does expose the other end, and there is a bit of a divot in it. I've pushed it down while pulling on the stem, but it jerks the lever back under gears/plate.

bobm12 Distinguished Member

bobm12

Posted
Posted (edited)

That's it, wiggle the stem while pulling and press firmly downwards at the same time (or press + pull in that order, but together) !

Edited by bobm12
Irishcain Watch Enthusiast

Irishcain

Posted
  • Author
Posted

Bob,

Turned out that you were right. I'd tried that before but the arm just kept jumping back under the the plate when I pulled on the stem. This time though, I pressed down so hard I was afraid I'd break something and the stem slid right out.

 

Here's what the face looks like under the dial. It was a bit of a surprise to see a sun/moon under there, not to mention 2 date windows 

16369133418_1687af9dd9_m.jpg

bobm12 Distinguished Member

bobm12

Posted
Posted

Excellent job! It looks like an old Seiko/copy with a sun/moon dial and the option of having the date @3 or @4. There is the distinctive magic lever and I believe you already removed the rotor. Did you find anything on the rotor that may indicate a caliber, like a 7002 or 61XX... If Seiko, the old models are usually marked on the main plate. Then, with the 7S26, they started marking them on the rotor. Of course it is not a rule but mostly a guideline since I believe you get some shady area depending on model where markings are either way...

 

In any case, it is definitely Asian! So, happy watchmaking and let us know of the outcome.

 

Cheers,

 

Bob

Irishcain Watch Enthusiast

Irishcain

Posted
  • Author
Posted

The rotor was blank, more than likely aftermarket. I generally take the rotor off rather quickly after removing the caseback. Saves worrying on bending/breaking something by accident.

clockboy Distinguished Member

clockboy

Posted
Posted

I've gone through all my Seiko PDF,s and I can not quite get an exact match perhaps it is a generic of a Seiko. Still should be serviceable though.

bobm12 Distinguished Member

bobm12

Posted
Posted

Most likely, clockboy, some Chinese clones are very similar and they are not marked. I got a bunch for learning, mostly broken. They were described as Seiko TYPE movements and then explicitly that they were no Seiko brand.

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