Hi there good I am listing my grandfather's watch that my grandmother gave to me when I went up to visit her after my grandfather had passed away. She is 98 and they were very wealthy, so she couldn't tell me much about it. It is an exquisite looking vintage Audemars Piquet with a very thin black band, and a unique shaped face that is almost a rounded off squareish face, I've looked for hours online trying to find the matching model that this watches via the numbers on the back and I've sent pictures to several different Jewelers who only told me that it was a vintage automar that they weren't interested in because they didn't have any clientele who would be interested in such a small thin watch. I just want to gauge how much this thing is worth because I honestly have no idea.