Hi

After thoughts on this before sending back to CW towers for a repair.

C1 Moonglow V1.

Date doesn't change at 12, whether from manually winding the hour hand past 12 and/or waiting for the hour hand to pass by 12 of its own accord.

Pulling out the crown and winding the crown successfully moves the date marker.

Would one expect the date wheel to fail to move when the crown is pulled out if the main date feature isn't updating when the watch is left to run?

I'm guessing there's a gear wheel disconnected from the main gear chain and the date wheel?

I had the exact same issue on arrival of the C1 moonglow LE and I have sent it back for repair

Mine had a similar issue a few years ago. The moon rotated as normal when it was running, but the moonphase wheel was stuck when I tried to manually set it with the crown.

Maybe the moon and date disk are connected somehow (they are operated from the same crown position after all) and maybe it’s a known issue with the JJ04. Though I don’t recall hearing anyone else other than mine and now this issue, so maybe it’s not really an issue.

CW repaired mine under warranty. I hope you get yours sorted soon!

On an SW200 it is two separate mechanisms that handle the date. One for the crown and quick set and a 24 hour gear for the regular change. I think that the NH35 GMT movement uses the second wheel to drive the GMT too if I am not mistaken.

I am not 100% sure how the JJ module gets in the mix. To be honest I am a little fuzzy on how the multifunction crown positions work in general. Maybe someone else will chime in here.