What do Patek Philippe reference numbers mean?

Patek Philippe reference numbers give you basic information about a timepiece. The first digit of the number indicates whether it is a men's or women's style. Men's watches usually start with 3, 5 or 6, while women's watches will begin with a 4 or 7. The letters in the reference numbers indicate the type of metal used: T is for titanium, R is for rose gold, J is for yellow gold, G is for white gold, A is for stainless steel and P is for platinum. The other groups of numbers identify details of the timepiece. For example, 500 means the watch has an engraved case, while 300 refers to a model with baguette gemstones. If you want to interpret your watch's reference number, refer to trusted online resources for the meanings of specific codes. Find a wide range of Patek Philippe watches on 1stDibs.