Sinn U1 winding whilst screwing the crown down

[sunking101]

Is it normal for the movement to handwind whilst screwing the crown back down into the case?
I have a brand new U1 with the SW200-1 movement.

[CesarG]

[sunking101]

Some people say yes and some say no. I'm trying to find the definitive answer and my Internet search is coming up blank. Can any other U1 owners with a Sellita movement chip in?

[CGSshorty]

It’s not a Sellita issue. I’ve had watches do this with ETA and Seiko movements as well. While it is probably not ideal, they’ve all worked properly otherwise.

[sunking101]

It’s not a Sellita issue. I’ve had watches do this with ETA and Seiko movements as well. While it is probably not ideal, they’ve all worked properly otherwise.

I agree that it's not a big deal but I just want to know if it's normal operation with the U1. I have a returns period as this is a brand new watch.

[hoppyjr]

You already received your answer. If you don’t trust what we say, move along.

[sunking101]

You already received your answer. If you don’t trust what we say, move along.

Like I said, I've heard people saying yes and people saying no. Ideally I wanted to hear a few U1 owners say that theirs winds as they screw down the crown. Case closed then.
Do you own a U1? Does yours do it?

[TSD]

[hoppyjr]

He doesn’t get it.

[sunking101]

Not one person has said "yeah I own a U1 and it does this."
Not ONE person so maybe quit taking the proverbial? It's an expensive (*to me) watch and I would like to know 100% for certain. Thanks.

[matt.wu]

This forum probably has had the most U1s per person compared to anywhere else on the internet....

I've owned a few but don't own any now, so I can't replicate it for you.

[Jeep99dad]

I’ve owned many and didn’t have the issue but have had the same occur with other watches. It didn’t impact the watches in other ways though

[sunking101]

This forum probably has had the most U1s per person compared to anywhere else on the internet....

I've owned a few but don't own any now, so I can't replicate it for you.

Thankyou.

[sunking101]

I’ve owned many and didn’t have the issue but have had the same occur with other watches. It didn’t impact the watches in other ways though

Thanks :-)

[TSD]

I tried this very unscientific test with my U1Pro (SW-200). With the mainspring totally unwound, I unscrewed and screwed down the crown for several minutes and couldn’t hear any sound from the winding gear train. The seconds hand never moved. It’s about 9-10 turns to lock, and the seconds hand might have moved if it were winding.

[hoppyjr]

Not one person has said "yeah I own a U1 and it does this."
Not ONE person so maybe quit taking the proverbial? It's an expensive (*to me) watch and I would like to know 100% for certain. Thanks.

Actually, Cesar is a person. See his reply above.

If you aren’t getting what you need here, it’s fine to move along to Watchuseek…..

[sunking101]

Not one person has said "yeah I own a U1 and it does this."
Not ONE person so maybe quit taking the proverbial? It's an expensive (*to me) watch and I would like to know 100% for certain. Thanks.

Actually, Cesar is a person. See his reply above.

If you aren’t getting what you need here, it’s fine to move along to Watchuseek…..

I just politely asked a question. Cesar simply said "Yes." Now I'm not disputing that he is correct but he doesn't clearly state that he has a U1 and that his does it. I would like clear and resounding proof. If two people post that their U1 exhibits this winding behaviour then I'll be satisfied. Surely that's fair enough.

[sunking101]

I tried this very unscientific test with my U1Pro (SW-200). With the mainspring totally unwound, I unscrewed and screwed down the crown for several minutes and couldn’t hear any sound from the winding gear train. The seconds hand never moved. It’s about 9-10 turns to lock, and the seconds hand might have moved if it were winding.

Thanks. I swapped the watch today at the AD and the new one doesn't wind the movement whilst screwing down the crown.