When someone advertises a watch as genuine Swiss grade what exactly does that mean? Is the movement Swiss instead of Asian? Is it worth it to pay 250 more for it? In looking at the pics of this watch that is on Craigs list, the serial numbers on the case back and band are the same as the ones on a 6.75 I recently purchased from Andrew, which has the Asian 7750 movement. How do I know the watch has a Swiss movement? The watch for sale looks great. Any opinions?