Jump to content
When you buy through links on our site, we may earn an affiliate commission.
  • Current Donation Goals

Ladies Datejust Eta Running Unusually Fast


gioarmani

Recommended Posts

I'm of the understanding that inside the red circle (in the pic below) is where the time can be adjusted up to +/- 5 secs a day, per the etched notches in this ladies Datejust 2671 ETA movement. My girl's datejust runs about a minute & 1/2 fast per day, so I did adjust that to the lowest "-" setting on the regulator (I believe that's what that particular part is called), and it's still running almost as fast; even after a lube job.

I noticed that by comparison (in the second pic) in the 2836 ETA in my GMT II & Sub, that regulator part sits opposite in the movement (i.e., if you're looking at the movement with the crown facing north, in the ladies, the regulator points down with the + & -, and in the mens, it points up:

140512-17125.jpg

140512-17126.jpg

If you also notice the two parts registered by red arrows--a & b ( I have no idea what they're called, but logic would suggest they also have something to do with beat/time regulation)--both are in view and closer together on the ladies model, where one is farther over & out of view on the mens model.

Do the resident experts happen to know what these two parts are called, and what their purpose is, and more specifically how do I correct the excessive speed on the ladies model? Simply move them further apart?

Thanks again for your time.

Link to comment
Share on other sites

... and it's still running almost as fast; even after a lube job.

If you sent the watch out for a "lube Job" and it's running almost as fast as it was before you sent it out, then whoever did the work most likely didn't do anything... After servicing it's normal for the watch to run slower or faster than it was before servicing...and normally a watchmaker would adjust the beat and rate to specifications... Strange that after servicing you still have a fast running watch, and not only that, but it's as fast as it was before it went out...weird...

In any event, comparing the 2671 to a 2836 is meaningless, as they are not the same movement...

To adjust the rate without a timing machine is a long process, and because you have to move the regulator arm, very risky for damage to the hairspring..

If you look at your first picture, it tells me that there is a problem, because the two levers are so close together, and the watch is still running fast (fast watch is either out in beat or dirty or dry...).

To adjust the watch, move LEVER A towards lever B, and this will make it run slower...how much to move I can't tell you, you will have to move it a little bit, and then time it and see how it does...

If you end up with the two levers almost touching, then the chances that you had a "lube job" are next to nil, as normally these levers are quite far apart on a correctly serviced and oiled watch...maybe you got a "snow job" instead...

RG

Link to comment
Share on other sites

I actually did the oiling myself (which is where I was afraid I might have moved these arms one way or the other when piecing it back together), but I've done an oiling on 2 other ETA's & one Asian model with success.

I'll definitely try what you suggest--not sure if it's proper or not but I'm comparing the timing of this watch to 3 of my ETA's which are almost exact to the second, and those to the digital clock on the iMac. If this doesn't seem to do the trick, I'm guessing your next suggestion would be to take to an actual watch-smith?

Thanks again.

Link to comment
Share on other sites

I actually did the oiling myself (which is where I was afraid I might have moved these arms one way or the other when piecing it back together), but I've done an oiling on 2 other ETA's & one Asian model with success.

I'll definitely try what you suggest--not sure if it's proper or not but I'm comparing the timing of this watch to 3 of my ETA's which are almost exact to the second, and those to the digital clock on the iMac. If this doesn't seem to do the trick, I'm guessing your next suggestion would be to take to an actual watch-smith?

Thanks again.

Ok on the oiling...

My only comment would be that oiling a watch requires that it be totally taken apart, cleaned completely until there is no trace of oil anywhere, and then assembling it and oiling it with not only the correct qualtity, but the correct viscosity oil(s) i.e. it takes 5 types of oils and greases on this particular movement...I am not clear if you took the movement completely apart...if you did, congrats because this is one of the most difficult movements to work on, bar none...

Based on the comment that you used one type of oil (I am not familiar with that particular oil) and the watch is running fast, I would say the reason is that it's running fast is due to over-oiling...with too thick an oil...

This is an extremely small movement, and requires minute amounts of oil in each pivot...anything more than the amount in between these parantheses (.) especially in the escape and 2nd wheel pivots, and the movement is over-oiled...

Running fast with that spacing between the arms, would indicate to me to have it either serviced by a watchsmith, or at least adjusted on a watch timer...

RG

Link to comment
Share on other sites

Thanks again RG.

It's got to be over oiled then, unless it needs to be demagnetized possibly? Forgive my ignorance, but I'm not sure it's been in contact with anything magnetic--I'm still new to this. It's possible that I could have over-oiled it; it's not a wonderful thought to have sunk all this $ into tools, only to have to still pay another party to fix such a simple problem. I've moved the two (a&B) arms apart & it's still gained aprox 10-15 secs just in the past hour. :(

Link to comment
Share on other sites

  • 10 months later...

Amen.....I can only concentrate on one thing at a time...I am a bloke!...........

VERY interested in seeing how you go...I have exactly the same problem..

Have tried oilling using an insulin syringe...seems to work, having a fine tip.....

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...
Please Sign In or Sign Up