Jump to content

Recommended Posts

Posted

I need to remove the oscillating weight from a  Miyota 8205 automatic & manual winding movement.

Although this is a straight forward operation is there a very narrow (1mm or less) wide bladed screwdriver specifically for undoing such a wide slotted head screw to avoid any possible marking of the screw head or the laser engraving on the actual weight? I use top quality screwdrivers normally used in watch assembly/disassembly however this is one operation I would like to find a specific tool for.

I have tools for specific caliber locking rings used in higher quality movements however I have never found a generic tool for removing the oscillating weight in this type of movement.

Thank you all in advance for any information.

 

 

Posted
2 hours ago, 123clocks said:

Although this is a straight forward operation is there a very narrow (1mm or less) wide bladed screwdriver specifically for undoing such a wide slotted head screw to avoid any possible marking of the screw head or the laser engraving on the actual weight? I use top quality screwdrivers normally used in watch assembly/disassembly however this is one operation I would like to find a specific tool for.

No need for anything specific, a correctly sized driver will do. Low end Japanese mechanisms are designed to be serviced by all levels of technicians.

Note, there is a section on this forum where new members like to introduce themselves even before start asking questions.

Posted
2 minutes ago, clockboy said:

I am not 100% sure but last year I think I serviced that Movement. I can not remember any specific screwdrivers were required.

Of course not. Diver blade does not have to be as wide as the cut, it is not a tight screw.

Miyota_8205.jpg

Posted

Use a good wide screwdriver, making sure the blade fits as good as possible. That is all you need to do. I don't know of a special screwdriver you this type of screw.   

Posted

Thanks JDM for posting a picture of the movement.

I have observed the forum from the time Mark started it. Never needed to make a post.

I am probably being a bit pedantic but that's just me. Call me a "tool nut" um yes I think that is what I mean. You just can't have to many tools -:) at least I can't.

My repair skills go back many years. OLD HIPPY and I could swap head photos accept I am greyer in the hair department.

Any way thank you all and best wishes from down under. BTW I used a correctly sized narrow blade and all is good.

Posted
9 hours ago, 123clocks said:

Call me a "tool nut" um yes I think that is what I mean.

Oh, don't worry. There are many like that here and anywhere. Some are even happy to never use the tools, LoL.

For me, what matters is that the job is done and is done right. Tools, like money, come and go.

Posted
Thanks JDM for posting a picture of the movement.
I have observed the forum from the time Mark started it. Never needed to make a post.
I am probably being a bit pedantic but that's just me. Call me a "tool nut" um yes I think that is what I mean. You just can't have to many tools -:) at least I can't.
My repair skills go back many years. OLD HIPPY and I could swap head photos accept I am greyer in the hair department.
Any way thank you all and best wishes from down under. BTW I used a correctly sized narrow blade and all is good.
I know what you mean its nice to have a specific screwdriver for the width of the screw on these Rotas [emoji5]

Sent from my SM-N910F using Tapatalk

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • interesting video nice to see the machine what it can do now I wonder what it costs and I'm sure it's not in my budget. Plus the video brought up questions but the website below answers the questions? What was bothering me was the size of his machine 4 mm because I thought it was bigger than that? But then it occurred to me that maybe they had variations it looks like four, seven and 10. With the seven and 10 being the best because way more tool positions in way more rotating tools. Although I bet you all the rotating tools are probably separate cost https://www.tornos.com/en/content/swissnano   Then as we been talking about Sherline. Just so that everyone's aware of this they have another division their industrial division where you can buy bits and pieces. I have a link below that shows that just in case you don't want to have the entire machine you just need bits and pieces. https://www.sherline.com/product-category/industrial-products-division/   Let's see what we can do with the concept I explained up above and bits and pieces. For one thing you can make a really tiny gear very tiny like perhaps you're going to make a watch. Then another version the center part is not separate it is all machined from one piece. Then fills gear cutting machines have gone through multiple of evolutions. A lot of it based on what he wanted to make like he was going to make a watch unfortunately eyesight issues have prevented that. Another reason why you should start projects like this much sooner when your eyesight is really good or perhaps start on watches first and then move the clocks then local we have from the industrial division? Looks like two separate motors and heads. Then it's hard to see but this entire thing is built on top of a much larger milling machine as a larger milling machine gave a very solid platform to build everything.   Then like everything else that had multiple generations are versions the indexing went through of course variations like above is one version and the one below was the last version. Now the version below I mentioned that previously and somewhere in the beginning to discussion and somebody else had one in their picture. As it is a really nice precision indexing. Then I wasn't sure if I had a the watch photos here is his unfinished watch. No he wasn't going to make a simple watch like none of his clocks were simply either what would be the challenge and that.    
    • Use a Portwest Howie lab coat. They are the biological type so they have tapped cuffs so you don't end up getting the loose cuffs of normal lab coats catching everything. 
    • Some of the Chinese tools ae great and can be purchased at a fraction of the price of Swiss ones, some are complete garbage and some I'm convinced are coming out the same factory as the branded ones.
    • I found this string about this problem. I've not gone through it all, but I believe it also mentions making a spring. If not in this string, the info is online.
    • No, I now realise it’s broken😥 ive looked for one online, but v. Expensive! im going to service as is, in the hope that  one turns up. Thank  you.
×
×
  • Create New...