Jump to content

RONDA RL 1223


jthing

Recommended Posts

Stems for watches are usually referred to with a 'Ronda Number' (and not just for Ronda watches like yours!).

I believe the Ronda Numbers for your movement are 1848 for the standard wind/setting stem and 1790 for the alarm wind/setting stem.

A quick look on ebay gets me this: https://www.ebay.co.uk/itm/RL-RAX-RONDA-Watch-Winding-Stem-x1-Part-401-Many-Calibres-CHOOSE-FROM-LIST/153716373246. If you look through the items available you should see a picture of the 1790 stem. Probably then a good idea is to check your standard stem ... if it is indeed different from this stem then the 1790 is more strongly confirmed as the one you want! You can then get from this ebay source or another source @watchweasol has suggested.

Link to comment
Share on other sites

13 hours ago, WatchMaker said:

Stems for watches are usually referred to with a 'Ronda Number' (and not just for Ronda watches like yours!).

I believe the Ronda Numbers for your movement are 1848 for the standard wind/setting stem and 1790 for the alarm wind/setting stem.

A quick look on ebay gets me this: https://www.ebay.co.uk/itm/RL-RAX-RONDA-Watch-Winding-Stem-x1-Part-401-Many-Calibres-CHOOSE-FROM-LIST/153716373246. If you look through the items available you should see a picture of the 1790 stem. Probably then a good idea is to check your standard stem ... if it is indeed different from this stem then the 1790 is more strongly confirmed as the one you want! You can then get from this ebay source or another source @watchweasol has suggested.

Thanks Watchmaker. I have book marked this on ebay. I will contact seller.

Link to comment
Share on other sites

Yes so it is the 1790 you need. If I take the pic from the ebay seller mentioned and put your broken stem next to it this would seem to confirm this:

image.png.cfcf1f5c886e94748891b61f7cce8fb0.png

That reference you've found on ranfft is the Flume number i.e. because Dr. Ranfft is German he uses this company for parts: https://www.flume.de/en/index.html; so it is their part number reference. As mentioned however it is more usual to see the more widely recognised Ronda reference and a company like Cousins lets you buy stems from this number: https://www.cousinsuk.com/category/filter/ronda-stems-by-ronda-number

Link to comment
Share on other sites

6 hours ago, WatchMaker said:

Yes so it is the 1790 you need. If I take the pic from the ebay seller mentioned and put your broken stem next to it this would seem to confirm this:

image.png.cfcf1f5c886e94748891b61f7cce8fb0.png

That reference you've found on ranfft is the Flume number i.e. because Dr. Ranfft is German he uses this company for parts: https://www.flume.de/en/index.html; so it is their part number reference. As mentioned however it is more usual to see the more widely recognised Ronda reference and a company like Cousins lets you buy stems from this number: https://www.cousinsuk.com/category/filter/ronda-stems-by-ronda-number

Thanks WatchMaker. Much appreciated.

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Look carefully at the tube end?? It appears to me to have a fragment thread visible? Either that or a step just away from the end? I can imagine a chamfer, but a step seems odd - but I've never seen the tubes used on these.
    • This is a very valid point and a subtlety that I was unaware of until fairly recently, learning all the time, the video below explains this point well:  
    • You don't have to use his special tester. Any good multimeter would work.
    • Yes, it looks like GT Revue 30. Doctor, You can not replace escape wheel by the dimensions You listed. One needs to know much more things like number of leaves of the pinion and it's diameter, the position in high of the table and the pinion, the hight between the pivots, the exact pivots diameter... And then, even if suitable wheel is found, one will need to know how to adjust the pallets position correctly. Restoring antique movements is something different than replacing parts. In older movements parts are not interchangeable, this means spare parts do not exist. Here the case is different, but still escapement adjustment will be needed if a wheel from a donor is found. So may be it will be easier to restore the donor for You...Restoring antique movements usually means making of the parts needed and this requires knowlage and working on lathes skill. In this case repivoting of the wheel is the natural solution, but there is a long way that one must walk untill getting ready for such work.
    • I was looking at Essence of Renata, a chemical used a lot for cleaning hairsprings: "Specially prepared solution for degreasing watch and instrument components. Indispensable for degreasing hairsprings." Looking at the MSDS you can see this is just pure n-Heptane, so could be an option for those who don't want to use the chlorocarbons or hexane?     HF6013 - Horological Essence COSHH Safety Data Sheet Horological Essence_0.pdf
×
×
  • Create New...