New watches aren't supposed to do this - are they?
- From: "Wrothchild" <no_email@xxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 27 Feb 2006 16:36:29 -0500
Hello all,
I'd like to get the opinions of the watchmakers in the group. I
purchased a brand new watch a little over 2 weeks ago with the ETA 6497-1
movement (I had read good things about that movement in this group, and my
decision was based on that). I had been keeping track (somewhat) of its
accuracy, and it seemed to be very accurate, as mechanicals go, for the
first two weeks. Then one day I noticed it was a bit fast. So I began a very
close observation of it to see exactly how well it was keeping time. In the
first 24 hours of my close scrutiny, I saw that it gained one minute. As
days passed (not many, but exactly how many I'm not sure of now) it seemed
to gradually gain more. The last 2 days of my observation, it was gaining
almost exactly two minutes per 24 hours. The watch has not been dropped, nor
hit (I am very careful about that) and I wind it fully at the same time
every day. Although it was on warranty, I decided (for reasons of my own,
that are irrelevant here) not to send it in (I ordered it from a mail-order
house, not locally) and instead I took it to a local (and longtime)
watchmaker to get his opinion. I figured if he said he thought it had a
problem, I'd send it back for a replacement. He examined it, said the
amplitude of the escapement was good (I asked) and said there didn't appear
to be anything mechanically wrong with it. So I asked him to regulate it,
and he did. The watch has an exhibition back, and I'd noticed, looking at
the movement with a 10X loupe, that the lower jewel of the escape wheel
pivot seemed to have (in my admittedly inexperienced opinion) excessive oil
on it. The whole end of the pivot was covered over with oil. I asked my
watchmaker about it and he said he didn't think that was a problem.
My question here is, what would be the likely cause of it to begin to
gain like that? A brand new watch, running well and keeping accurate time
for two weeks, with no damage or harm done to it, suddenly begins to gain as
much as this. It seems strange to me. The regulator being moved by some
impact can be ruled out; as I said it has an exhibition back and I
remembered the position of the regulator when I got it, and it had not moved
from that position, until the watchmaker moved it today.
What thinkest thou?
Jody
.
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