Is 0.2Ms Beat Error Worth Worrying About.

[DJT2]

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.

As a few may remember, I picked up a sweat little longines that was gaining 1hr+ per day & would stop intermittently. After a complete strip down, service & regulating the 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?

[SSTEEL]

Leave it as is for a while, and check it again after a few weeks of it running.

[Geo]

Leave it alone, you've done an excellent job and your workstation looks the business too! :). That reminds me, I must tidy mine up soon.

[clockboy]

Personally I would leave alone. it depends how easy it is to adjust the beat, if it is adjusted by moving the hairspring collet I would definitely leave.

But some might but not me.

[DJT2]

Thanks for the advice guys. If it's not losing or gaining how exactly does the beat error affect the time keeping /running of the watch.

[Geo]

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.

[DJT2]

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

[Geo]

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.