Jump to content

Is 0.2Ms Beat Error Worth Worrying About.


Recommended Posts

Hi guys, it's been a month or so since I last picked your brains. During this time I've been beavering away with a few projects & getting my workstation fit for purpose. 50fd1c2977770dafb29367b7a2ba9e1c.jpg

As a few may remember, I picked up a sweat little longines 164c154e8031fd55a174e89ddb07473a.jpgthat was gaining 1hr+ per day & would stop intermittently. After a complete strip down, service & regulating e6bc9aae2cc0d7e3a10a107f30466607.jpgthe beautiful little eta 2671 now runs like a champ. However, I'm wondering on the timegraph I'm still seeing 0.2ms beat error, but 0 s/d gain. Would you guys leave it alone now & say job done or try to get the beat error correct? 7737ca2b9fe621b367241dbae0e0ec9a.jpg

  • Like 1
Link to comment
Share on other sites

If the beat error is out significantly, the watch will either not run, be a pig to start and require a shake, or it will be prone to stopping. It can still keep good time provided the beat error is constant.

Link to comment
Share on other sites

Oh OK, I'll leave it alone & let the wife use it, then check it again in a few weeks. Thanks guys

That's a good idea.

What you get on the timegrapher and when your wife is wearing it will more than likely be different due to positional errors. Hopefully it won't be much as worry about. It's not the first time I have had to calibrate a watch to me after setting it up on the bench.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I saw mention of the super glue and bolt method on various forums. I wondered if there’d be any problem with that given the watch is titanium. Will the glue or the acetone stain the metal? Titanium is supposed to be resistant to corrosion, but sometimes certain metals react with chemicals unexpectedly.   If it doesn’t stain or scratch the watch and can be completely removed with acetone, the bolt and glue method seems like a clever last resort approach.   However, I don’t think I’m ready to use that method on this watch. The watch is new, and it was a gift, and it wasn't cheap. Also, +10 spd really isn’t that big of a deal. I can just correct it once a week to keep it within a minute of the correct time. If I had a manual wind watch I’d have to wind it more often than every week, so I can think of it that way.   I think neverenoughwatches is right that this is the wrong watch to use to start learning how to repair watches. I think I’ll either buy the Unitas 6498 or a clone to do the watch fix course. I may also get a $200 invicata pro diver with the SW200 movement that I believe is also in the tag heuer aquaracer to start learning watch repair. It uses the “caliber 5” which I believe is just an SW200-1 or ETA 2824-2 with a tag decorated rotor.   How long would you all say it takes to develop basic competence working on mechanical watches? What level does one end up at after doing the first three watch fix courses?   I mentioned in my intro post that I was emboldened to try to regulate the tag watch by my success in swapping out a broken quartz movement on a friends 15 year old fashion watch a month or so ago. It had a Ronda 762 which was available new from Esslinger for $10. I didn’t have the right tools or any experience but I was able to remove the movement, swap the dial and hands, and reassemble the watch to fix it. It appears to work fine now. The only reason I attempted it though was because they were going to throw the watch out, so the risk was really just the $10 for the new movement. The risk on this aquaracer is much higher and probably above my risk threshold.   Also thanks very much for all your suggestions and help. I’ll post some more images of the watch shortly.
    • Thats just the tip of the iceberg, they have no idea of what is yet to come.  When you start grabbing stranger's left hands to turn their wrists to see what watch they are wearing then thats when they need to start worrying. Erm  not that i...ah-hem....have done that.
    • Can you get a top view with power off, balance at rest? The hairspring could be off center just enough that it is touching something when running (center wheel, stud, regulator). Thing is, on older stuff in particular, if you find a balance complete there's about a 99.99% chance the hairspring of the new balance will need some adjustment to work correctly.   Also, not much use getting concerned with the rate until you get the amplitude up.
    • Those pins look awfully tight. Does the hairspring slide freely between them when you adjust the rate?  
    • John will ask this question anyway: how did the watch run before your service?
×
×
  • Create New...