If as it appears it came from the watch amanico posted I am a bit surprised but I suppose no one really knows just why it was done. As someone that has recently scrapped a gold watch I can't really say anything bad about it, but the watch I scrapped was nowhere near as special as the Chopard. On the bright side you recused the movement and will find it a nice case to live in and you will have a very special and unique watch.
Marc