I also tried to find more info on it. The PP experts might be able to help. What I know is it's a PP 5022R-001 (R for RG). Made from 1997 until 2003. Manual-wind caliber 215 PS (I believe PS because of the small seconds). It came in 3 golds + platinum. Not all of the 5022 models have the guilloche dial.What I have learned from searching for older watches is many don't have the Certificate of Origin. That was harder than finding this actual watch. (The same applies to any brand of older watches, by the way). I am happy to have found this one. It's still on my writst today too.