This is a rather spectacular Mathey-Tissot Grande Complication with an Audemars Piguet movement. It has a minute repeater, split chronograph with minute register, perpetual calendar, moon phase, and age of the moon in an 18K gold case with 56 diamonds around the bezel and a white gold (or platinum?) dial. I just posted it for the interest of this forum. I no longer own this watch because I sold it for $26K some years ago. Mathy-Tissot didn't make many complicated watches and may have made this with the Audemars movement for entry in an international watch show.