You should not manually set the date between 10pm and 2am?

[rolexsubdate]

Someone told me that if you manually set the date between 10pm
and 2am, then your movement can malfunction and cause damage. The
reason is that inthose hours the automatic date changing mechanism
is coming back to life so any manual tinkering of it will screw it up.
Also that this was only true for high end movements.

Has anyone heard something similar?

thank you

[bighaole]

I've always heard that you shouldn't adjust the date between those hours with mechanical watches.

[watchf]

I asked that same question recently http://www.rolexforums.com/showthread.php?t=167170

[SPACE-DWELLER]

It doesn't matter on a modern Rolex...

On certain other movements, for instance the ETA Valjoux 7750, it's adviced not to adjust the date during that time span.

[padi56]

Originally Posted by rolexsubdate

Someone told me that if you manually set the date between 10pm
and 2am, then your movement can malfunction and cause damage. The
reason is that inthose hours the automatic date changing mechanism
is coming back to life so any manual tinkering of it will screw it up.
Also that this was only true for high end movements.

Has anyone heard something similar?

thank you

Well on todays modern Rolex movements it should not be any problem. On the older movements before the quick set date feature, and still on some ETA and Valjoux movements its advisable.But myself still old school and would still not change the date between 9pm to 2am on most mechanical movement all brands and prices.