sub date question

[mjs73]

I purchased a Z series sub date about a month ago, I had to advance the date at the end of June because there are only 30 days in June, but tonight I looked at my watch and it was still on 15 and I had to advance it to 16, is this a normal occurance? The time was right but the date was wrong. Has anyone had this problem?

[Welshwatchman]

It was likely to be 12 hours behind.

If so, you'll find that it may now turn 17th tomorrow at noon.

[Tools]

So, it depends on how you advanced the date..

If you pulled the crown all the way out and turned the hands to advance the date, then I would agree with Paul..

If you only pulled it out to the guick-change date position, and gave the crown about a turn, the date would have snapped over and you would not have changed anything else...

Let us know..........