Jump to content

sstakoff

Member
  • Content Count

    255
  • Joined

  • Last visited

  • Days Won

    7

Reputation Activity

  1. Like
    sstakoff got a reaction from BasSWarwick in Another 7750 Disassembly   
    Spent a bit of time in my workshop.
    https://youtu.be/RYNeRiDdPQE
     
  2. Like
    sstakoff reacted to nickelsilver in Valjoux 72c Minute Recording Jumper/Pawl   
    I feel that the steady pins are necessary. Especially on jumpers like this that aren't adjustable, once the position is set (you have to adjust the position of the jumper point by filing) then it is set for life. I think he may have left them out to provide a little bit of adjustability, plus it's tricky getting them in the right locations, and you have to make them on a lathe, and press fit, and so on so it's actually a fair bit of work.
  3. Like
    sstakoff got a reaction from jdm in Valjoux 72c Minute Recording Jumper/Pawl   
    Thank you - these parts are so very delicate so it's not surprising that after many decades and however many services that they break. The one I have is slightly fractured and a bit of a twist at the fracture as well. I wonder if there's a way to repair it? I fear that an attempt to solder it will just cause it to break from the heat.  This is the exact same watch as Mark's video: https://www.youtube.com/watch?v=pFOQm9sAzE8&t=932s. He runs into the exact same issue. Mark chose to make a replacement and was kind enough to record the whole process. I am leaning towards doing the same.
    In Mark's replacement, I do not believe that he created the alignment pins to the part. I am curious as to whether or not this is a concern as I would not want the jumper to move over time. I was thinking about ensuring the new part was in very close proximity to the balance cock and/or the chrono bridge to prevent rotation.
     
     
  4. Like
    sstakoff got a reaction from Nucejoe in Part 2: 7750 Reassembly   
    Reassembling the Tourneau 7750. Keyless work and Train of Wheels
    Click to view on YouTube
  5. Like
    sstakoff got a reaction from Klassiker in Part 3: 7750 Reassembly - Escapement lubrication, Chrono Bridge, Automatic Bridge, Motion Work   
    One more part to come...
    http:// ETA 7750: Part 3 - Reassembly: Escapement Lubrication, Chrono Bridge, Automatic Bridge, Motion Work
     
     
    Sent from my iPhone using Tapatalk
  6. Like
    sstakoff got a reaction from clockboy in Part 3: 7750 Reassembly - Escapement lubrication, Chrono Bridge, Automatic Bridge, Motion Work   
    One more part to come...
    http:// ETA 7750: Part 3 - Reassembly: Escapement Lubrication, Chrono Bridge, Automatic Bridge, Motion Work
     
     
    Sent from my iPhone using Tapatalk
  7. Like
    sstakoff got a reaction from Nucejoe in Part 3: 7750 Reassembly - Escapement lubrication, Chrono Bridge, Automatic Bridge, Motion Work   
    One more part to come...
    http:// ETA 7750: Part 3 - Reassembly: Escapement Lubrication, Chrono Bridge, Automatic Bridge, Motion Work
     
     
    Sent from my iPhone using Tapatalk
  8. Like
    sstakoff reacted to Watchtime in Part 2: 7750 Reassembly   
    thanks for sharing, very informative.
  9. Like
    sstakoff reacted to Nucejoe in Lubricants Avail - No Charge!   
    Thank you @sstakoff for the moebius oil, delivered to Los Angeles address several days ago. I shall receive it at my address in Iran, before long. Much appreciate it. Best wishes.

  10. Like
    sstakoff got a reaction from dadistic in Part 2: 7750 Reassembly   
    Reassembling the Tourneau 7750. Keyless work and Train of Wheels
    Click to view on YouTube
  11. Thanks
    sstakoff got a reaction from Klassiker in Part 2: 7750 Reassembly   
    Reassembling the Tourneau 7750. Keyless work and Train of Wheels
    Click to view on YouTube
  12. Like
    sstakoff got a reaction from Graziano in Part 2: 7750 Reassembly   
    Reassembling the Tourneau 7750. Keyless work and Train of Wheels
    Click to view on YouTube
  13. Like
    sstakoff got a reaction from rogart63 in Lubricants Avail - No Charge!   
    Ha! I’m sure you can find an overpriced Bergeon if you try! I opted for the $12 version.
    https://www.amazon.com/dp/B00RV8PREI/ref=cm_sw_r_cp_awdb_t1_Ty2DEb7PTN7QG
     
    This worked fine.
     
     
    Sent from my iPhone using Tapatalk
  14. Like
    sstakoff got a reaction from rogart63 in Lubricants Avail - No Charge!   
    Did the Keyless assembly today, so I used the fluorescent HP-1300. Works great! Shows up under a black light as bright green - very easy to see where it is, and where it isn't. So - I'm a fan!   Will let you know how the 9010 looks when in jewels later.
    The fluorescent doesn't show well under camera - so the next video won't do it justice
     
  15. Like
    sstakoff got a reaction from markr in Lubricants Avail - No Charge!   
    Happy to report that all the items mentioned have been shipped to others that expressed a need for them. I'm glad these resources did not go to waste.
    Hope everyone is doing well...
    Stu
  16. Like
    sstakoff got a reaction from Klassiker in Lubricants Avail - No Charge!   
    Happy to report that all the items mentioned have been shipped to others that expressed a need for them. I'm glad these resources did not go to waste.
    Hope everyone is doing well...
    Stu
  17. Thanks
    sstakoff got a reaction from Nucejoe in Another 7750 Disassembly   
    Spent a bit of time in my workshop.
    https://youtu.be/RYNeRiDdPQE
     
  18. Thanks
    sstakoff got a reaction from Vacherin in Video Disassembly of 7750 Clone   
    I recently decided to attempt to create a video of the disassembly of a Chinese clone of the ETA 7750. In actuality it is a variation of the 7750 platform. The movement does not have an hour recording feature, but instead has a continuous seconds hand in the 6 o'clock position. I also show where the clone design improves upon ETA - namely protection from breaking the date indicator driving wheel if the user attempts to set the date using the rapid corrector during the "forbidden" time range (10pm-2am??)
    Certainly not anything near the quality of Mark's videos, but I decided to give it a shot! Assembly video will be posted when available.
    Enjoy.
     
     
     
  19. Like
    sstakoff got a reaction from Klassiker in Lubricants Avail - No Charge!   
    All-
    I've been inactive for a while, but starting up again. I just replaced some of my expired and expiring lubricants. I also replaced my 9010, 9415 and HP-1300 with the fluorescent 
    versions.
    So....I have what are essentially full bottles of the following:
    Moebius 9415 - expires 12/2021
    Moebius HP-1300 - expires 10/2021
    Moebius 9010 - expires 12/2020
    Moebius 8217 - expired 11/2019
    Moebius 8200 - expired 08/2019
    Moebius D-5 - expired 09/2019
    I am happy to ship any or all of the above to someone that will be able to put them to use. I'm sure others here will be able to offer opinions as to whether or not the expired
    lubricants can/should be used. Please be considerate and only ask for what you are truly in need of. This stuff is very expensive, so I am hoping it will not go to waste.
    I am happy to ship within the US for free. I can do overseas if you can PayPal me the cost of shipping.
    Stu






  20. Like
    sstakoff reacted to markr in Lubricants Avail - No Charge!   
    Very nice offer on your part.
  21. Like
    sstakoff reacted to watchweasol in Lubricants Avail - No Charge!   
    Hi  JJM  tell her the dog ate it.    A very generous offer SStakoff,  My theory on oils is the same as food the date is a guide if it tastes ok smells ok eat it and at 76 and still going (just)
  22. Like
    sstakoff reacted to JJM in Lubricants Avail - No Charge!   
    I bet a shudder went down your spine when it came to settling the lube account!...... Best hide the receipt from the other half!
  23. Like
    sstakoff got a reaction from IOB in Valjoux 72c set hands to zero   
    I agree that this is likely caused by the hands not being pressed on firmly enough. And to do that you certainly need to support the pivots when installing the hands. If you are working on the hands, presumably the watch is out of the case. The "underside" is actually the back of the watch - opposite the dial. You need to place the pivot on something like a stake of appropriate size, a movement-specific holder for this very purpose, or a platform such as a Bergeon 5409 which is designed to support the pivot.
    It is also possible that there is something wrong with the reset hammers and/or hearts. They need to be very smooth and properly adjusted. There is also an eccentric stud that is used to adjust the reset. See images attached as they may help!

  24. Like
    sstakoff got a reaction from jdrichard in What tool for measuring jewel holes ?   
    I have a jewel hole gauge and a pivot gauge similar to these:

     

    The problem is that these are VERY expensive tools. You can also measure the pivot using a micrometer. You will need a jewel with a hole slightly larger than the pivot. Of course you also need to know the measurement of the outside diameter of the jewel in order to make sure it can be fit into the plate or chaton. You may need to ream the hole to a larger size. You will need a jeweling set for reaming and pushing in the new jewel. Are you certain that the jewel is friction fit??
  25. Like
    sstakoff got a reaction from meanoldmanning in What tool for measuring jewel holes ?   
    I have a jewel hole gauge and a pivot gauge similar to these:

     

    The problem is that these are VERY expensive tools. You can also measure the pivot using a micrometer. You will need a jewel with a hole slightly larger than the pivot. Of course you also need to know the measurement of the outside diameter of the jewel in order to make sure it can be fit into the plate or chaton. You may need to ream the hole to a larger size. You will need a jeweling set for reaming and pushing in the new jewel. Are you certain that the jewel is friction fit??
×
×
  • Create New...