Jump to content

Buren movement designed for other functions?

DJW

By DJW
in Watch Repairs Help & Advice

 Share

Recommended Posts

DJW Super WRT Addict

DJW

Posted
Posted

I was tearing down this Buren movement and noticed that there is a pinion for a separate gear. It is driven off of the hour wheel. The hour wheel does has a separate gear set underneath that drives whatever would be in this position. Would this be some sort of a date function? Movent is engraved ST 171 ... I could not find any information on this with any relation to Buren watch movements.

IMG_20170620_190418017.jpg

IMG_20170620_195840687.jpg

IMG_20170620_192903154.jpg

Link to comment
Share on other sites
DJW Super WRT Addict

DJW

Posted
  • Author
Posted

If I wasn't clear enough about where it's located on the main plate dial side... It's the large circular recess with the pinion in the middle. Just off the hour wheel.

Link to comment
Share on other sites
DJW Super WRT Addict

DJW

Posted
  • Author
Posted

After a little more research it appears that these movements were actually supplied by Seiko Corporation. I have found some very similar Seiko movements with the same dial side layout. And it does appear that there was some advancing wheel there for a date function that was not installed on this movement. I believe from the research I read that Seiko started a company called UT and supplied movements unmarked or E Bosh's to companies. I believe this is one of those movements. It also only Beats at 18000 BPH... Ones that are stamped Seiko all seem to beat at 21600 bph...

Makes sense now that the case was stamped Hong Kong. So now truly an international watch! a watch company that was based in Switzerland with a Japanese movement and a Hong Kong Chinese case:huh:

Link to comment
Share on other sites
rogart63 Distinguished Member

rogart63

Posted
Posted
 

After a little more research it appears that these movements were actually supplied by Seiko Corporation. I have found some very similar Seiko movements with the same dial side layout. And it does appear that there was some advancing wheel there for a date function that was not installed on this movement. I believe from the research I read that Seiko started a company called UT and supplied movements unmarked or E Bosh's to companies. I believe this is one of those movements. It also only Beats at 18000 BPH... Ones that are stamped Seiko all seem to beat at 21600 bph...

Makes sense now that the case was stamped Hong Kong. So now truly an international watch! a watch company that was based in Switzerland with a Japanese movement and a Hong Kong Chinese case:huh:

Thought i had seen it somewhere before. Its a Seiko 7625 or something like that? 

Link to comment
Share on other sites
DJW Super WRT Addict

DJW

Posted
  • Author
Posted

Also you can see where the calendar advancement wheel is located in the same exact spot of the area in question that I had originally. Mystery solved! Thanks guys!

Link to comment
Share on other sites
rogart63 Distinguished Member

rogart63

Posted
Posted
 

I think this is the closest match..

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a&2uswk&Seiko_6105A

Also I wasn't sure if anyone other than Seiko had used this automatic winding movement, it has the magic lever type escapement shown in the pictures on this reference page at the bottom...

That ain't a 6105 movement. Not even a 7625 as i thought at first. That has no adjustable beaterror arm. 

Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • watchfellow
      Stem broken - can it be rescued?

      By watchfellow · Posted

      I think that a 814/825 stem would work, there are a lot of compatible parts between these.
    • watchfellow
      Venus 178 hour counter creep

      By watchfellow · Posted

      Hi everyone, I put together a Venus 178 recently, but found that the hour counter "creeps" ie. runs when the chrono is disengaged. This is the similar type of setup as the Omega 861, where the hour counter is driven off the mainspring barrel, but stopped when the chrono is disengaged by a friction spring.  Am I correct in assuming that the friction spring for the hour counter driving pinion should be dry? I am guessing that the issue will be either the spring or the driving pinion, but while the driving pinion has some wear the spring looks decent.  I've attached a couple of photos in case anyone has any tips. Thanks in advance!
    • watchfellow
      Setting power reserve on LeCoultre Futurematic

      By watchfellow · Posted

      Thanks everyone for the replies. It seems setting the hand is a bit of a guessing game, and I thought there would be a very specific way to do it. Since the reserve indicator hand moves clockwise as the spring is wound, I tried setting it right at the start of the black side. But setting it there doesn't really make sense, because by the time the spring is halfway wound, the hand is only at the end of the red side... In my head halfway wound shouldn't mean the hand is still "in the red."
    • Chief
      Intro

      By Chief · Posted

      Lovely part of the country! I spend most of my days driving along the A64 for work in and around York. I'll be sure to drop plenty of questions soon! I've actually got a couple of watches on the way that I'm pretty sure I'll need some help with! They look pretty beat up from the pics but I love a challenge and an excuse to buy more tools 🤣
    • oldhippy
      Help - London Elliott Mantle Clock Night Silence

      By oldhippy · Posted

      I have two of these in my home. You need to remove the movement from the case, take off the hands and remove the dial and take a few good photos of the front plate so I can see what the problem is. The round nut unscrews and the hands pull off pull them off from the center and not the tips as you could break them. 
×
×
  • Create New...