Jump to content

Jarod


Recommended Posts

Hi guys,

First time writing on a blog to find out a few technical issues regarding a Tudor watch that I have recently has repaired. I have previously had it serviced for a full service and overhaul and paid a lto of money on the repair only a few months ago. I have tested the movement on a timegraph machine and the results show that there is a large beat error and low amplitude and a variance in the timing.  If you could please let me know your thoughts?  

iansymons tudor after service.jpg

Link to comment
Share on other sites

wow! Well since you said it was recently serviced and giving the watch repairer the benefit of the doubt that he is a pro who knows what he is doing. my guess is watch is magnetized but normally that would yield + seconds with low so i dont know i dont want to bash a fellow watch repairer without due process. if you have a demagnetizer you can demag the balance and the movement separate. if you dont have a "demagger" then you can check it by passing the watch around a compass (do this first either way). if the needle moves off of north then watch is magnetized and any watch repairer can demag a watch within 2 minutes and most likely wont cost much if anything. plus services and overhauls usually have a 1 year warranty.

now if it is not magnetized then either wrong mainspring was installed or he changed a hairspring and just didnt bother to set/vibrate the hairspring in beat. cracked a jewel setting a bridge, many things could have gone wrong. and in that case take it back and demand he fix it.

Edited by saswatch88
Link to comment
Share on other sites

Caliber please,   Tudor makes eta movements some beat 28800 bph others higher, this to know and have a baseline to compare readings with.  Also the power level at which these TG readings were produced. Was the piece fully wound?  half full? One hunderdth?  At very low power levels such imperfections are not unexpected  especially if the piece is old. 

Regards 

  • Haha 1
Link to comment
Share on other sites

1 hour ago, Nucejoe said:

Caliber please,   Tudor makes eta movements some beat 28800 bph others higher, this to know and have a baseline to compare readings with.  Also the power level at which these TG readings were produced. Was the piece fully wound?  half full? One hunderdth?  At very low power levels such imperfections are not unexpected  especially if the piece is old. 

Regards 

haha i love this man, my response was a little more cut throat lol. but only thing that concerns me though is the beat error nuce. would it be so high or any at all if it was just low power on the train from winding down? and wouldnt these extreme readings be seen within a short time frame before watch finally came to a stop? just spit balling here never really had this issue since i always know to wind my watches when timing, so not sure what to expect under such circumstances.

Link to comment
Share on other sites

Presumably both the watch owner and repairman reside in europe, perhaps in Great Britton, so I safely conclude the repairman is licenced and knows in and outs of in beat :lol:.  On the other hand No human being can guarantee a tiny hair didn,t get inside as he screws the back on.

No one is perfect , yet  limited outlook on a given subjects at an instance. If you were to list all possibilties,fault,issues, you wouldn,t leave any room for me to respond. 

Thanks to the likes of JJ thompson, Hertz, bose and the rest of great man who showed electrons have spin , EM field exist, and crystals have electrical properties , to give birth to electronics so we can share  ideas across the globe and learn, developements, improvements for mankinds betterment stemming from it, are yet to be seen.

Aren,t we all learning? 

Regards

  • Like 1
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • An update, for everyone who contributed advice, and for those who come after with a similar problem. Based on the answers received, I decided to work on the face of the hammer first. I used a square degussit stone to guarantee a vertical surface to work against, and ground the face back until it was square across 90% of the depth. I was conscious of the risk of removing too much material.* After I'd got the shape how I wanted it, I polished the surface with lapping film. To cut a long story short, it did the trick and the hammer hasn't slipped off the cam since. Of course, that wasn't the end of my problems. Have a look at this video and tell me what you think is wrong. https://youtu.be/sgAUMIPaw98 The first four attempts show (0 to 34 sec.) the chrono seconds hand jumping forwards, the next two attempts (35 to 47 sec.) seem "normal", then on the seventh attempt (48 to 54 sec.) the seconds hand jumps to 5 sec. and the minute counter jumps to 1. The rest of the video just shows repeats of these three variants. I solved it by rotating the minute counter finger on the chronograph (seconds) runner relative to the cam.  I'd be interested to hear your opinions on that. It seemed to be the right thing to do, but maybe I've introduced another problem I'm not aware of. * What is the correct relationship between the two hammers and cams, by the way? Should both hammers strike the cams exactly at the same time, or is it correct for the minute counter hammer to be a bit behind the seconds hammer? In this picture, I removed the adjusting screw at 1, and the hammers are contacting the cams simultaneously at 3 and 4. I had to turn the screw down tight to achieve this condition after stoning the seconds hammer and replacing the bridge.
    • It was easy enough to pop off. Once I had the cannon pinion hanging on the blades of the stump, I got my #2 tweezers on the gear attached to the staff and levered it down. That way none of the force was on the brass wheel itself.   I reinstalled it and the bridge, and it looks like a small but reasonable amount of end shake. It also spins easily with a blower. It stops quickly, but I think that's due to the large shoulder and about what I'd expect from this wheel.  
    • Oh, right. For some reason I was picturing a monocoque case in my head. Good looking watch!
    • Well said Ross. My reason for the thread, i like many of us dont want to lose the forum, such a well knitted group of individuals i feel. But things can happen out of anyone's control. Would be nice to have something in place just in case, if anyone has any ideas please speak up. 
    • Ok thanks Ross, I will give that a try!😁
×
×
  • Create New...