Piaget anniversary special edition vintage

This vintage model, had been carried over my mom's side for years, given to me as a new year's gift. Too bad that not much information on this watch is available at the moment, and Piaget does not seem to keep its database for extra-ordinary items like this. If anyone can fill me up with additional information, such as the year it was made, the model name, I would really appreciate your contributions. On the back it has engravings which state 9528X 298XXX, which seems like a set of model and serial numbers. As can be seen in the picture, it's got a decagonal shape, gold plated face, and I believe it originally came with a brown alligator strip.