Ok, here's a different question. I keep reading that many of the more expensive Patek's at auction have been one off custom models. I have also read of a few custom runs (25-30 pieces) of the 5110 World Timer model.
Does anyone have an opinion of the scarcity or price point at auction of a (only) one off platinum 5110 that was made with a specific (different) city for a customer?
Thanks for the opinions.