David Allen
201
It has copper and possibly silver mixed in...
Both oxidize. Only 24k gold will not oxidize unless you expose it to aqua regia, which you'll probably never come across in a normal watch-wearing setting.
Goodbye my lovely 15202BA!
By: ktkt200 : June 21st, 2022-12:02
Hi AP Jumbo Lovers. Sharing a picture of my 15202 in yellow gold (which I bought in 2014) that has developed a lovely patina over the years. I started my watch collecting around 2012 with a IWC GST Titanium chronograph 3707, caught the titanium bug and ad...