That is a tough one. If you damaged the date mechanism, it will need replacing. Whether it is the wheel or gear that moves the wheel, you need the part. That more or less means that LVMH is going to need to see it, whether in the US or in Switzerland.I recently damaged the date mechanism in my Chronomaster Moonphase watch. Where can I get it repaired in the USA other than sending it to LVMH? Is there another good repair center? It is out of warranty.