Buying a luxury watch is a very serious investment, and you absolutely need to do your homework before you buy your first piece. This is especially important if you want something that will not only look good but also appreciate. The good news here is that you don’t necessarily need to know everything about watches to get something you’ll be happy with. Once you know the fundamentals and some of the things to avoid, you should have no trouble finding a watch you’ll love that you can resell later or…