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    • By wilding
      Hello there watch fix fans. Here's (I hope) an interesting one for you.
      I have this beautiful small ladies 'Fero Feldmann' Swiss-made watch - it came in a bag of "used and to be repaired" watches.
      From what I can see, the mechanism seems in very good working order. Just a slight shake and it goes and goes. There is no strap, but that is not the issue here.
      The problem is the stem and/or crown. As you can see, there is definitely no crown. But I am wondering about the stem.
      The watch does have its case and edoes have, as you can see, a hole where the stem and/or crown will/should fit in.
      There is something which appears to be some kind of part-stem at the 3 o'clock position.
      Using tweezers I can pull it out and push it back in quite freely. A very small screw on top holds this "stem" in place. I think you can see, in ths second photo, how this "stem" attaches to the rest of the movement.
      Clearly I need to attach a crown. BUT what about a stem? A stem extension? Or one of those crowns which has an extended stem-like attachment which should fix onto this current "stem" in this watch?
      Yes, the watch face is somewhat scratched, and the minute hand is a little bent at the top. You may say it is not worth my while trying to get this fixed. But I just SO MUCH like this little watch and would LOVE to give it life again! It clearly IS still "alive" - though I'm not sure if it is a mechanical wind-up or an automatic. The latter of these seems to be the case - as I said earlier, a little shake and the mechanism goes and goes. PErhaps with a little oil (and lots of encouragement) it can be made good.
      So my main question - what kind of stem/crown to attach and how to do it?
       


    • By examiner
      How to remove this winding stem? I don't know what I should push to remove this winding stem.

    • By Heman
      Hello all,
      I have a watch I would like to fix my self. It's made by TAWATEC, who is no longer in business. It's very similar to a Luminox and used TGS for lume. I will provide information to the best of my ability. 

      Here is a link to some information about it. Here are a few pictures of the watch. 

       


       
      I have had the watch since May of 2011. I had the battery replaced in Feb 2015 by a local shop. Less than a year later, I noticed that after taking a shower there was condensation under the crystal. I pulled the crown and left it sit to air out. After about a week I pushed the crown back in and the watch no longer worked. I wondered what caused it to leak. I then remembered I had to change the date on the watch a few days before condensation had got inside the watch. When I was trying to set the date I noticed that it was difficult to pull the crown out and it was more difficult to turn than usual. My guess was that the gasket/O-ring that is on the stem/crown was messed up and had ripped and water had entered that way. I left the watch sit for a year and used another watch as my daily driver. I'm hoping to get this one up and running again. So I recently decided to see if I could fix the watch myself. 
       
      Here is what I have done and have figured out so far...
      I was able to remove the case back by removing the 4 Phillips screws. Visually inspecting the O-ring that seals the case back, everything looks good. The movement is a Ronda 515. The plastic ring that holds the movement inside the case says Ronda 515 # 6. I was able to remove the crown and stem. Looking towards the inside of the crown there was remnants of the O-ring. After clearing the remnants and putting the crown back in, the crown moves freely. I also found remnants if rubber on the front of the dial. After inspecting the battery, it looks to have leaked its electrolyte What I would like to do first is replace the O-Ring that's on the crown and put a new battery in it. If I then determine that the movement is damaged, I can replace it later. 
      What do I need to do to figure out what size of O-ring I need for the crown? I can take pictures of the crown/stem if needed. I also have analog calipers to use that are in inches.
      Thanks for your time!
       
       
    • By lucasantarella
      Hi All,
      I recently replaced the movement for my Tissot PR50, which was a standard ETA F06.111. I now need to replace the crown as the old stem was broken into the crown and could not be re-used.
      Could someone point me in the right direction in finding a proper replacement crown? I don't know the size or how/where to measure to find a proper crown.
      Thank you!
    • By Wesley881
      Hi all,
      My goodness it's been a while since I've posted and boy have I missed this forum! Feels good to catch up on a few new tales of triumph, trials and tribulations.
      I have a Waltham model 1910, 37 size chronometer that I recently had some help getting a new staff for. Now it's time to find a crown. Problem is, the common car clock case for this movement has a 6.80mm neck, but the weighted case for the ship chronometer has a 7.20mm neck. Any ideas of sourcing something like this short of making one? I'm browsing Cousins at the moment...
      Cheers
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    • Welcome Dan  I too have many hobbies but love the watch and clock aspects but flyfish when time and weather allow plus fly tying , gardening and Diy  plenty to do
    • Hi Dan, Welcome to the forum.
    • A soak in diesel fuel, naphta for day or two,  ends the old story of heads popping off the screws. I remove balance cock pallets and soak the rest, give one dip in a fluid I can stand the odor of. Any cheap multipurpose oil would do. I use several solutions, detergent seperately and brush extesively.  
    • Hello forum folks, I've been tinkering with watches for maybe 5 years now. I'm very much a beginner but I have been practicing on cheap watches and movements that it is ok to break. I've managed to make my own watch dial from a brass sheet, including brushing, rhodium plating, printing, and creating applied markers and numerals. I've also made a "smart" watch using epoxy-based putty for the case and my electronics knowledge. I have some basic skills in metal finishing including polishing and plating. So I've mostly worked on the non-movement aspects of watchmaking and am interested into learning about servicing movements. I live in the Milwaukee area and was thrilled to see MATC (local trade school) on lists of schools that teach watchmaking -- just to have that dashed when I contacted them and the class has been discontinued for lack of interest  So for now, I have online and book resources to learn. I have a mostly cheap watch collection other than a Longines that I treasure. I have a few different old timex mechanicals I got off of ebay, including 2 from JerseyMo which I saw is on this forum. I have have way more hobbies than time so I'll probably be around off and on. Dan
    • First thing would be to remove the pinions. They are sometimes quite well rivetted, so this may involve turning away some of the rivet or being willing to sacrifice the wheel (it could easily be distorted beyond use in punching the pinion out). Then you need to compare the hole in the wheel you want to use to the diameter on the pinion that will be pressed and rivetted in. If too big it gets tricky, you'll need to sleeve/bush the hole very securely. I would open the hole further, then chamfer both sides, make the bush with an undersized hole, then fit it in. Swage the bush with a convex punch in the hole from both sides, then a flat punch that is larger than the bush. The idea is to deform metal into the two chamfers on the wheel. Finally flatten and clean up. Now open the hole to receive the pinion. If the hole is too small it's easy, just open it up and press/rivett the pinion in.
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