Noise when turning the crown

[radoidge]

My new GMTII stopped during the weekend due to not being worn very much. I adjusted the time and manually wound the watch, and I noticed in both cases a noise: it is if there is some slight "slack" when first turning the crown, before either the winding mechanism or time adjustment mechanism kicks in. When the mechanism does kick in, there is a faint clunk sound as it catches. Is this normal?

[Tools]

There is a bit of slack before winding or setting... You can move the crown back and forth a bit without any movement or clicking sound..

However, a "clunk" doesn't seem right unless you're not exactly in the detent to start with..

[radoidge]

Clunk may be a bit of an overstatement, but there is a distinctly audbile sound. So when winding, it feels / sounds like there is something engaging each time I turn the crown clockwise.

[Tools]

Originally Posted by radoidge

Clunk may be a bit of an overstatement, but there is a distinctly audbile sound. So when winding, it feels / sounds like there is something engaging each time I turn the crown clockwise.

If your watch is fully wound, then there is a slipping bridle (clutch) in the mainspring barrel.

If wound fully, further rotation of the crown will rotate the entire mainspring winding machanism inside it's barrel. There will be a more difficult feel and as the entire mechanism rotates, it will drop (click) into anti-rotation detents that keep it from unwinding..

[JostheBoss]

yeah that's probably normal. shocked me too.

[radoidge]

I hate to go on about this, but I am still worried about it. It also happens when you pull the crown all the way out to adjust the hands. As you turn, before it engages, not only do you get this sound, but its almost as if the entire watch mechanism is moving a tiny amount inside the case. You can even feel it as well as hear it.

[Tools]

The dial is attached to the movement which is attached inside the case. It is not very likely that the movement is moving within the case.

When you pull the stem out you do dis-engage, and engage certain parts of the movement train such as drive pinions and gears. This has to happen to be able to perform the function you want without affecting the rest of the movement train.

There will be some slight movements visible and felt during some operations. However, it is impossible to diagnose a condition on the internet.

If you feel that your watch is not functioning correctly then you need to consult a watchmaker who can physically touch it and determine any issues hands-on..

[connorperson]

Originally Posted by Tools

If your watch is fully wound, then there is a slipping bridle (clutch) in the mainspring barrel.

If wound fully, further rotation of the crown will rotate the entire mainspring winding machanism inside it's barrel. There will be a more difficult feel and as the entire mechanism rotates, it will drop (click) into anti-rotation detents that keep it from unwinding..

Thank you for this piece of advice

I experienced the same thing this evening winding and setting my watch forward an hour and almost freaked out when I heard the loud turning click

I feel much better now realizing it was the the clutch kicking in keeping it from being over wound

[DJJon]

Originally Posted by Tools

If your watch is fully wound, then there is a slipping bridle (clutch) in the mainspring barrel.

If wound fully, further rotation of the crown will rotate the entire mainspring winding machanism inside it's barrel. There will be a more difficult feel and as the entire mechanism rotates, it will drop (click) into anti-rotation detents that keep it from unwinding..

This explains my issue reported a few weeks ago when I thought I had done in my 3135.

I let it go til stopped and since then smooth as silk.