We acquired our first. It's a 5120G, but it keeps stopping. The dealer told us that "as with most automatic winding watches, you have to wind it 20-30 turns manually if it stops and then wearing it should keep it wound"!! They told me that the normal running time is 48hours? Is this true?
My husband and I are joining the ranks of Patek Philippe collectors driven by the birth of our son. How do you validate authentic Patek Philippe watches. For example: I am looking at a 5120G in the pre owned market. There are several reference numbers on the documents that are available with the wat