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Install/replace part 228/8270 Venus 170


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I had occasion to reset the set lever. When doing so, I found a piece of the above part lodged under the rocking bar?. I don't know if I broke this part or if it had been broken previosly and ended up where it ended up. I have the part, but without an exploded view I have no idea of the location or if it something I want to try to replace.

 

Any thoughts appreciated.

 

Regards Jack 

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Hi Mike,  Thanks for your response.  Can't provide fotos of the problem, because my problem is that I don't know where  the part has to go. I have the tech sheets, but can't seem to find assembly and/or disassembly articles that would show the location of the part. Because I found the broken part on dial side under the rocking bar, I thought it might be changeable from dial side, but when I look at the dial side on another 170, I don't see the part. I'm thinking it is positioned somewhere on balance side and I'm not prepared to enter that side blindly or I will have turned an otherwise nice watch into parts. I'm sure that doesn't help you. I am looking for explode views of the 170 or some disassemblies views of the movement.

 

Regards Jack

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Jack, you might want to read through this post from 2016 that discusses working on a 170 movement.

It is possible that you can reach out to those engaged in that discussion for more info. Generic chrono diagrams (as shown below) likely won't be much help.

You might also consider taking Mark's Level 5 course on chronographs. While his course will use a Chinese movement, once you've gone through it you might feel more confident tackling yours?

generic explode.jpg

generic explode2.jpg

Edited by grsnovi
added 2nd diagram
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7 hours ago, whyer said:

I am looking for explode views of the 170 or some disassemblies views of the movement.

One of the problems and watch repair is the assumption it's like automobile repair and detailed manuals are available for every single watch in the universe. Reality is if you're lucky you'll find a parts list. Really lucky the parts list might actually have pictures of the parts and then if you're extremely lucky there might exist some sort of technical documentation that you might actually build a get if you're lucky.

Looks like you're extremely lucky or you're just lucky I remembered something to find you there is a link and I snipped out an image. So at the link you scroll to where you find that the second link that says 170 that switchers seeking. You'll find it's a complete service manual independently written on this particular watch.

https://www.watchrepairtalk.com/topic/10501-custom-build-using-venus-170/

 

 

chronograph 170.JPG

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8 hours ago, JohnR725 said:

You'll find it's a complete service manual independently written on this particular watch

Great find John! Who could ask for anything more? OK, next will be the: "Where can I get a replacement part ####?"

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5 minutes ago, grsnovi said:

OK, next will be the: "Where can I get a replacement part ####?"

If it's a chronograph you're probably screwed. Usually anything that's delicate and breakable which would be what a chronograph Has whatever was breakable was broken a long time ago and there's no more spare parts left. Which is unfortunately why when you look at eBay you'll see watches disassembled for the parts because the parts are worth way more than the movement itself is worth.

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One of the problems when asking for help is making sure everything is in the message body. He asked you put really important clue in the title but I typically don't read the title beyond getting made to the discussion then I read the text in the discussion and that the text is missing the important clue from the title well then I'm screwed here. So the important clue from the title is 228/8270

On 2/3/2023 at 9:22 AM, whyer said:

I had occasion to reset the set lever. When doing so, I found a piece of the above part lodged under the rocking bar?. I don't know if I broke this part or if it had been broken previosly and ended up where it ended up. I have the part, but without an exploded view I have no idea of the location or if it something I want to try to replace.

The problem then becomes I don't see that clue in the description and if you have the part number you what had the part name which is minute recorder jumper and that would've been extremely helpful in this discussion.

For those not familiar with the minute recorder jumper if it breaks your screwed. I don't know if somebody can laser weld it back to the base or not and yes they are really really easy to break. The often see this on watches on eBay where they are missing.

In any case providing I put the pieces correctly together I have pictures the minute recorder jumper and I've circled it on the movement.

Oh and as watch repair is a visual oriented hobby it would've been nice to have a picture of the movement we probably could it just found the missing component anyway it's a low hard the work in a dark with the description that's not entirely clear. red out what was missing.

Venus 170  228.JPG

Venus 170 minute recorder jumper.JPG

Venus 170 minute recorder jumper location circles.JPG

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22 hours ago, whyer said:

Hi Mike,  Thanks for your response.  Can't provide fotos of the problem, because my problem is that I don't know where  the part has to go. I have the tech sheets, but can't seem to find assembly and/or disassembly articles that would show the location of the part. Because I found the broken part on dial side under the rocking bar, I thought it might be changeable from dial side, but when I look at the dial side on another 170, I don't see the part. I'm thinking it is positioned somewhere on balance side and I'm not prepared to enter that side blindly or I will have turned an otherwise nice watch into parts. I'm sure that doesn't help you. I am looking for explode views of the 170 or some disassemblies views of the movement.

 

Regards Jack

It would help if we knew what the part looked like though whyer

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