Jump to content

Help to identify ladies watch movement

Ramone

By Ramone
in Watch Repairs Help & Advice

 Share

Recommended Posts

Ramone Member

Ramone

Posted
Posted

Hi guy's, I need help with identification of this movement, it has no markings anywhere of a movement maker or number,  the only marking is " Swiss made" and " 15 jewels "

The reason that I want the movement identified is because it needs a new hairspring, so knowing what it is would be a great help 

Thank you in advance 

Screenshot_20191111-152810.png

Screenshot_20191111-152818.png

Screenshot_20191111-152825.png

Link to comment
Share on other sites
watchweasol Distinguished Member

watchweasol

Posted
Posted

Hi just a thought  The bestfit books one and two are on this site posted by Old Hippy some time ago I think there was a flume indentification section on on of them. I have found the catalogues and attached them the password is tickandtock.  Theyare in PDF format so you gan page through them.

bestfit_part1_(1).pdf bestfit_part2_(1).pdf

  • Thanks 2
Link to comment
Share on other sites
Ramone Member

Ramone

Posted
  • Author
Posted
27 minutes ago, watchweasol said:

Hi   One way is by the flume (setting lever spring) there are books to reference it.  By the look of it its 30s 40s era.

Thank you kindly, I'll look up and pay particular attention to the setting lever spring shape 

Link to comment
Share on other sites
Ramone Member

Ramone

Posted
  • Author
Posted
22 minutes ago, watchweasol said:

Hi just a thought  The bestfit books one and two are on this site posted by Old Hippy some time ago I think there was a flume indentification section on on of them. I have found the catalogues and attached them the password is tickandtock.  Theyare in PDF format so you gan page through them.

bestfit_part1_(1).pdf 151.32 MB · 1 download bestfit_part2_(1).pdf 66.3 MB · 1 download

Thank you so much, the books would definitely help,  it's so hard to guess who made the movement, even the case which is sterling silver has no info, will try my best to find out and let yourl know the outcome :)

Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted
2 hours ago, Ramone said:

Thank you so much, the books would definitely help,  it's so hard to guess who made the movement, even the case which is sterling silver has no info, will try my best to find out and let yourl know the outcome :)

I need certain HS , 500 to 1000 pieces, know the caliber, not the CGS for its hairspring.  Question; How do you go about finding  compatible hairspring once you know the caliber?   TIA.     Best

Link to comment
Share on other sites
Ramone Member

Ramone

Posted
  • Author
Posted

Guys I have looked through the best fit books, I ddnt find an exact match 

However, the Eta 651 is scary close, what are yourls opinions?  I see it has its own escape wheel bridge/cock unlike the unknown movement,  and the setting lever spring slightly differ, I'll attach pics of the ETA 651

_20191112_151115.JPG

_20191112_151137.JPG

Screenshot_20191111-152810.png

Screenshot_20191111-152818.png

Link to comment
Share on other sites
nickelsilver Distinguished Member

nickelsilver

Posted
Posted
I need certain HS , 500 to 1000 pieces, know the caliber, not the CGS for its hairspring.  Question; How do you go about finding  compatible hairspring once you know the caliber?   TIA.     Best
Have you found the tech sheet for your caliber? They often actually list the cgs. Otherwise there are tables that correspond cgs to ligne size, which would be pretty close. If you need it spot on you'll need to have a selection of springs of known cgs, vibrate one that seems about right, check the diameter, then there's a simple formula to determine the correct cgs.
  • Thanks 1
Link to comment
Share on other sites
nickelsilver Distinguished Member

nickelsilver

Posted
Posted
2 hours ago, nickelsilver said:
On 11/11/2019 at 6:00 PM, Nucejoe said:
I need certain HS , 500 to 1000 pieces, know the caliber, not the CGS for its hairspring.  Question; How do you go about finding  compatible hairspring once you know the caliber?   TIA.     Best

Have you found the tech sheet for your caliber? They often actually list the cgs. Otherwise there are tables that correspond cgs to ligne size, which would be pretty close. If you need it spot on you'll need to have a selection of springs of known cgs, vibrate one that seems about right, check the diameter, then there's a simple formula to determine the correct cgs.

Found one of the tables, it's in French but easy to figure out.

 

If doing the test spring process, the formula is K=K' (D/D') 2

K is the CGS number you're looking for

K' is the CGS of the spring you test

D is the diameter of spring you need, at the pinning point

D' is the diameter of the correctly vibrated test spring at the pinning point.

 

Sorry to the OP Joe and I are hijacking the thread a bit, maybe a mod could move it to a new thread?87744470_cgslist.thumb.jpg.0a41658a0bac2adfa6a70505c1172faa.jpg

 

 

  • Thanks 1
Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

Hi Nickelsilver, Thank you for all the help.  Will search for the tech sheet.

I have many used genuine hairsprings and balances that I have been vibrating together. Need to place order for more hairsprings of compatible springness. 

Been trying to experimentally find a compatible HS of known CGS. 

 Strength is proportional to area of the coil outer circle.

I think I may find CGS direct out of this tables. 

Will keep you posted.  Thank you, great help.   Best

 

 

 

Link to comment
Share on other sites
WatchMaker Super WRT Addict

WatchMaker

Posted
Posted

Your measurements of 8.75 x 21mm put this at a ligne size of 3.75 x 9.25 (or perhaps 4 x 9.5). There aren't that many movements of this size and the most common is the FHF 59 (which other manufacturers used as well and gave their own movement ID to). Unfortunately it's not this as the keyless works and bridge layout are completely different to your movement.

Which brings me on to your probability of an ETA 651. That's a no ... at 10 x 22.7mm it's larger than yours and of course the keyless works (and bridge layout) are different. In my searching I had also come across the ETA 746 but it's the same story.

I have spent ages looking through stuff trying to find your movement but no luck. :mellow:  I've found setting lever springs that look similar but then a no-go on the movement size; a (Van) Buren movement looked promising but didn't tie up etc. etc.

I hope someone strikes lucky!

  • Thanks 1
Link to comment
Share on other sites
Ramone Member

Ramone

Posted
  • Author
Posted
13 hours ago, WatchMaker said:

Your measurements of 8.75 x 21mm put this at a ligne size of 3.75 x 9.25 (or perhaps 4 x 9.5). There aren't that many movements of this size and the most common is the FHF 59 (which other manufacturers used as well and gave their own movement ID to). Unfortunately it's not this as the keyless works and bridge layout are completely different to your movement.

Which brings me on to your probability of an ETA 651. That's a no ... at 10 x 22.7mm it's larger than yours and of course the keyless works (and bridge layout) are different. In my searching I had also come across the ETA 746 but it's the same story.

I have spent ages looking through stuff trying to find your movement but no luck. :mellow:  I've found setting lever springs that look similar but then a no-go on the movement size; a (Van) Buren movement looked promising but didn't tie up etc. etc.

I hope someone strikes lucky!

Thank you so much for the help and the time you spent searching 

 

Still no luck on my side, but will keep searching, hopefully I'll find out what it is 

Thanks again for the help 

Really appreciate it and appreciate this forum 

The information from the experienced are priceless :)

Link to comment
Share on other sites
Ramone Member

Ramone

Posted
  • Author
Posted
13 hours ago, Nucejoe said:

Yes I hijacked this thread, did not mean to , sorry sorry.:)

 

No need to apologise or to move,  

They are related 

After all I need to identify the movement because I need a hairspring 

I unfortunately never learn about CGS and hairspring formula yet but would love to in the future 

Thank you 

  • Thanks 1
Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted
53 minutes ago, Ramone said:

No need to apologise or to move,  

They are related 

After all I need to identify the movement because I need a hairspring 

I unfortunately never learn about CGS and hairspring formula yet but would love to in the future 

Thank you 

Just a quick intro,  CGS is( a system of units) used in analysis of  physical systems. C stands for centimeter, G for gram, S for seconds. . In this case, the relation between, torque( force applied at radius R) , springness and the amount of the resulting bend in a hairspring.  CGS is suitable for and adapted in horology.    Sounds difficult , it is easy.

Best 

  • Thanks 1
Link to comment
Share on other sites
  • 4 weeks later...
Ramone Member

Ramone

Posted
  • Author
Posted

Hi guy's,  I miraculously found a watch on an online auction with the exact movement,  the setting lever spring shape is slightly different but the movement is identical to the unknown in question,  and this movement that I found has a stamp / makers logo on the main plate under the dial 

However I have never seen this logo,  can anyone tell me what it is?  

Also there's no movement number under the balance cock,  just the letter " N"

Thank you 

Screenshot_20191206-053249.png

Screenshot_20191206-053344.png

Screenshot_20191206-053325.png

Screenshot_20191206-053325.png

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


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • HectorLooi
      Without Our Forum

      By HectorLooi · Posted

      Like losing Ranfft. That was a wake up call. We took his website for granted. Miss him terribly.  
    • Neverenoughwatches
      Without Our Forum

      By Neverenoughwatches · Posted

      Its 4 o'clock in the morning here in the Uk, i cant sleep, i dont sleep, not much ever really. My brain never shuts off to rest, I'm just a constant thinker, i have to be very tired to be able to sleep,  i guess eventually it will be my undoing and my health will suffer because of it I'm sure. But while I'm here i want to get as much out of life as i can, and give as much as i can, to help,maybe to make a difference to someone's life if that is within my capability,recent events have made that need even more clear to me. I'm not sure where I'm going with this or why i bring it up , or if its relevant to want i want to talk about its just in my head right now. What i do want to talk about is something thats been on my mind for ages. I like to be prepared,  I'm not fond of surprises because surprises take control away and i am a bit of a control freak at times. This forum, Our Forum if i can call it that, is here because of two reasons. The guy that created it and keeps it funded and the people that joined it.  Without either, it would not exist, and lets face it one day it won't ( I'm a realist and i talk about things others dont or who are afraid to in other words folk that dont particularly prepare for the inevitable). How many of us visit here regularly ?  How many among us almost depend on the forum as a way of socialising because they are stuck at home and how many of us has it become part of a daily routine to check in and see if they can offer advice or get help with something they are working on or just to have a chat and engage in some banter. The members here are in the thousands and thousands have disappeared over the years many had just a fleeting visit. But there are a good few of us that know each other quite well and visit regularly. I dont know about you but i wouldnt want to lose that communication with you all, in all honesty it has become an important part of that side of my life and helps to feed my passion for all things watches. Some of you may think differently and thats ok, some of may stop and think # what would i do " Without Our Forum " # 
    • Neverenoughwatches
      Gamblin Gamsol for cleaning?

      By Neverenoughwatches · Posted

      Naptha appears to be a general name and its content can be varied depending upon what it's specific use is. Lighter fluid as an example can be light or heavier also with other ingredients to help it burn. Try sesrching for benzine ( as opposed to benzene which is linked to causing health issues ) . There are other fluids such as ethanol that you could try and also methylated sprirts, mostly ethanol with a small percentage of methanol added. Experiment with any new chemical to see how quickly schellac dissolves in its presence. I have tried a few things but hexane is not one of them, i understand it does evaporate very quickly.  Be sure sure to check out any safety data on chemicals you try. Toxicity of fumes and flash point information, ultrasonic machines can heat up fluids even without a heater function. And of course always ask here for personal opinions when trying a new substance. 
    • GuyMontag
      What tools does ebay have to offer this week.

      By GuyMontag · Posted

      I have that set and really like it. I prefer that crystal holder over the one that came with my Bergeon claw tool and any time I use the claw I use this one instead of the Bergeon one, just an additional bonus with this tool.
    • GuyMontag
      Movement inserted from crytal side

      By GuyMontag · Posted

      Is the Roamer not a split stem? I'm confused on your how your case is put together. If it is a front loader where is it you are putting the case screws? I love me some Roamer, do you have any photos?
×
×
  • Create New...