To your surprise, this 5091/1A is my first PP back in 2000 to celebrate our 15th anniversary. There are different opinions about this watch, more tend to be negative. Anyway, it has a special value to me and I will pass it to my children.
From my collected information from various sources, the sculpture series has SS in white or black dial(5091/1A) and yellow gold(5590J). The lady's model is 5090J which is quartz and it has different versions including one with diamond bezel. It was said that there were a total of 2700 produced with 300 in each version. I am not sure these informations are correct or not.