Jump to content
  • 0
Sign in to follow this  
Dlechkun

Rotor bearing replacement

Question

HI I am new to the site my name is Dave. I have a tissot watch that I have had for over 30 years. It has been serviced several times. The last time I sent it in I was told I was told parts are no longer available. I decided to work on it myself. The problem I have is the oscillator rotor bearing looks like a press fit no bearing nut has anyone ever seen this type of setup. Is the bearing replaceable? The rotor is a tissot part and the movement is 7750. Any help would be great. Thank you. 

DSC_0180.JPG

DSC_0179.JPG

Share this post


Link to post
Share on other sites

4 answers to this question

Recommended Posts

  • 1

Hi Dave; It's a bit hard to see which exact model you have and where you are located; but a quick search on eBay a seller in Canada has a 2nd hand for a 7750 ....... ?

Perhaps a possibility ?

https://www.ebay.co.uk/itm/Tissot-Rotor-Oscillating-Weight-for-ETA-7750-Swiss-Made/202598217838?hash=item2f2bcb786e:g:YsEAAOSwQFhbY1IL:rk:1:pf:0

Share this post


Link to post
Share on other sites
  • 1

And, fleabay US has several listings for 7750 parts including an oscillating weight, complete with bearing. 

https://www.ebay.com/itm/Tissot-Rotor-Oscillating-Weight-for-ETA-7750-Swiss-Made/202598217838?hash=item2f2bcb786e:g:YsEAAOSwQFhbY1IL:rk:1:pf:1&frcectupt=true

There are also 2 complete movements for sale in case you're interested in having a spare movement for your watch.

Cheers,

TD

Share this post


Link to post
Share on other sites
  • 0

  good question,  even when they are " rattleing" the watch is working.  oil or thicker oil on the ball bearing might quiet them down.     if you can't  get a new one,  try oil.   good luck,  vin

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  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.

Loading...
Sign in to follow this  

  • Recently Browsing

    No registered users viewing this page.

  • Topics

  • Posts

    • So, I'm gonna try and post a couple of photos shortly, both Seiko of course for reasons stated earlier.   The blue one is apparently called the "ashtray" bezel. It winds, works, keeps good time, over the last 8 hours anyway, the only snag being the day pusher function does not operate every time.  The silver one is a Seiko deluxe which does not wind or work, in fact it makes a disheartening rattly noise when shaken, like something has come adrift inside.  They were purchased as items for me to take apart and study, then hopefully reassemble, having cleaned and lubed.  The ashtray arrived from India today, the deluxe arrived from Japan today, both were ordered last midweek. How easy these days to begin a new hobby, what with international freight, the Internet, and training vids on you tube. I may not even renew my porn subscription, this hobby could save me money!!!   Next purchase will be a set of intro level tools, then to business. 
    • One option for white is to use a toner reactive foil. This is what I used with success: https://www.circuitspecialists.com/pcb-trf-white.html I didn't use decal paper for printing but used toner transfer paper. My presumption this would still work with the film-less decal paper. Getting the toner reactive foil to work is tricky though. It requires both heat and pressure. Too much heat and pressure and entire dial turns white. Too little and it would only partially stick. It also requires some brushing to remove any bits of foil left over. It took a lot of time, practice an patience for it to work for me but it is certainly possible. I wouldn't recommend this on a dial you only have one-shot with, try with a blank you can practice with.
    • Ah yes, a coupla good ideas there!  I'll go find a welder and cadge a rod, that's a cheap option. Thank you fellas. 
    • Thanks, nickelsilver!  You mean, the first hairspring, the one still mounted is beyond repair? I haven’t touched it. If it is what you meant, it’s disappointing.  Thanks for the clarification on the vintage tools!
    • Can we have a look at the back. I'm sure the movement comes out from the back. That is not a waterproof case. 
×
×
  • Create New...