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HSL last won the day on March 23

HSL had the most liked content!

About HSL

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    WRT Addict
  • Birthday 11/09/1969

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    I love anything included in Horology.
    Other hobbies I have include Gardening, Genealogy, Genetics, Artificial Intelligence (AI),Electronics, Mechatronics, Robotics, General programming (C,C++,C#, F#, VB.Net, SQL and so on).
    In my profession I develope technology in the Nuclear area.

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  1. HSL

    Cyma Stem

    If you have a look for the Ronda winding stem replacement you should look for one called RONDA 1362, sometimes it's easier to get those. cousinuk obviously says they are obselute but a romainian ebayer has them, bought some odd stuff from him before. https://www.ebay.co.uk/itm/Cyma-Tavannes-watch-stem-1pc-NEW-many-calibers-1-13600-aufzugwellen-tige-NOS/392155509345?hash=item5b4e4a3261:m:mPeA9Xj8u9nYtzZ60NQMzog
  2. There are probably more discussions about this in different forums than I have underwear but I still think I will have a more philosophic and at the same time a pragmatic approach to this subject and keep in mind these are just my delusional thoughts in the matter. I think there are plenty of engineers in this forum who has watch repair/service as a hobby just because of the lack of standards and more on routine, luck and skills. When being a watchmaker it is a different ballgame since as with anything else there are some guidelines in how to do things in a best practice way. Here is some of them https://www.iso.org/committee/51734/x/catalogue/ When servicing/repairing it's a little bit biased just like in any trade, some prefer tools from a certain manufacturer, some have a favorite oil/grease manufacturer. How to oil/grease the watch you work with is just like when a technician is servicing your car, the manufacturer has a service schedule he has to follow so you can keep the warranty on your car and so do the movement manufacturers too, here you can find the ETA service documents. https://secure.eta.ch/CSP/DefaultDesktop.aspx?tabindex=2&tabid=28 Professionals often get certified at Watch manufacturers and by that get access to their service supply chain. It works the same in any trade. But after a while the warranty is no longer valid since time wears everything down even me. It's then one can begin to service/repair your watch by you self, I guess there are plenty of people in this forum who fixed some easy fault on an old car or even made an oil change or two on it. When doing that one might not always have access to the correct oil, spare part or service documents ,it's now when one can use a "general chart" as the one from Moebious. One can see they have compiled the most common functions in a watch and listed the components performing the tasks to achieve the function. To make this chart more generic one could change the oil/grease from the manufacturers definitions to some definitions like Fine oil, Thick oil, Grease and so on. This could give you a chance to choose lubrication from a different manufacturer if you have a feeling of the different definitions. One also have to keep in mind lubrication is just one part of the processes when servicing a watch movement, you just have to adapt an approach what feels good for you and with those words I think I stop since i guess Mark have a limited amount of space on his server and I have to give others a chance to give their view of the world,. P.S Even though I serviced hundreds of watches I still have attended all of Marks courses and enjoyed them very much it is always good to get a different aspect of the trade from sources like that, they give a little better context to what and why he has a certain approach when servicing the watches in his Youtube videos .
  3. HSL

    Tricky vertical amplitude problem

    Like with everything reducing weight on the balance wheel will make it easier to turn but it will be less energy stored, changing the hairspring to a fresh one would be no: 1 thing I would do if everything else is fine. I'm not a huge Rolex fan but have to give them a credit for their approach to make the hairspring to live slightly longer. http://static.rolex.com/flipboard/the-parachrom-hairspring.html Nickelsilver has a couple of god points with the size of the balance wheel.
  4. HSL

    Tricky vertical amplitude problem

    You seem to have done an impressive amount of work. If it like you say works perfect in both horisontal positions it would show everything looks fine in the drive train this far. The thing with placing the movement vertically is the dramatic increase of area the pivots can create friction through. But since it is a consistent increase in every position I would rule everything except the balance out as the culprit. You also have come to the same conclusion. I'm not sure the balance wheel is the only culprit maybe the hairspring just lost its swung, just like the mainspring it's made of metal and will suffer from metal fatigue, the increased friction lying vertical will in such case make the amplitude go down. Just a thought.
  5. HSL


    While replanting the Tomato plants I had some time to think, now I'm having a coffee break again. On that one there should be a setting lever spring a very thin thing is it still attached to the sliding pinion?
  6. HSL


    The stem sometimes is a friction fit square one, easiest is to remove the movement from the case take the stem away from the movement and push it into the nob again and hope it is tight enough to hold itself in place when pulling it upwards..
  7. HSL


    And of course i forgot to ask you look for a small screw on the side of the winding nob, sometimes it's how these come lose.
  8. HSL


    I took a look in the pocket watch database and it looks like this one does not have a pin lever setting so you just have to pop it out and fix the key less. Sometimes when I am little bit unsure I use this site to look up the movement. https://pocketwatchdatabase.com/search/result/waltham/8781555 Hope it helps..
  9. The Logo for sure is an Langendorf Watch Co. compass/divider but.. The key less work is more like the one from Langendorf 2-10.5''' For sure a very nice piece of mechanics..
  10. HSL

    What Tissot watch is this??

    No I'm innocent but I might have a moment or two when my memory becomes blank. Since my firm belief is that practice makes perfekt I always want to have one or two movements to practice on, not much difference from any other sportsmen. I just wish it could stop at one or two movements.. like a squirrel I have small stashes like this here and there..sad..
  11. Now it is time for me to look at the ETA 255.111, a movement found in a large amount of mid-priced quarts watches from Certina, Tissot, Omega, ETERNA, Longines, Tudor and many others. Though it goes by many names the original movement can be used as a guide when servicing others in this family. To save space and not make the thread a mile long I as usual made two PDF files of the Disassembly and Assembly of the movement. And as usual I urge you to look at the oiling and greasing scheme in the original documents from ETA. Enjoy! ETA_255_111_Disassemble.pdf ETA_255_111_Assemble.pdf
  12. HSL

    What Tissot watch is this??

    When it comes to screwdrivers one can buy some inexpensive ones but I would recommend to get a couple of used ones in a slightly better quality for a lower cost. It's not just the blades but also the Index finger has to rest comfortably on the little rotating nob on the top of the screwdriver, one has to think about things like this since you use that finger to apply force down on to the screw. If it doesn't rotate freely it is harder to turn the screwdriver around with like me with my middle finger and thumb. This technique prevents the screwdriver to slipp from the screw and damaging it. PS. I took a look on your wish list and this is what Santa might deliver, a slight upgrade kit if it fits.
  13. HSL

    seiko movement?

    Yes think your quite right .. Caliber: 6530 Case number: 5799 Serial number: 5 (1975) 8(Augusti) 0490 (Unique serial number)
  14. If you are looking for a guide you always can use the Moebius general chart, it is working fine for me regardless of manufacturer. Down side is you get like me stuck with Moebius oils, but think they are OK. http://www.moebius-lubricants.ch/sites/default/themes/moebius/extras/pdf/tableEN.pdf
  15. Now the capacitor has arrived and the assembly of the movement is finalized. After Reading Andys post about a glove box I too realized how important it is with a Clean enviroment when working on watches so i invested in this glovebox. Now i can have a Watch repair meeting with up to 8 participants working in an extremely Clean enviroment . The progress is as usual documented in a pdf file called Autoquartz_Assemble. AutoQuartz_Assemble.pdf