no 1 to 6 for me. Plus the added factor of sentimental value or personal memories from wearing the watch. For example, I have an Omega Bond Seamaster, a watch that I wanted since I was 8 years old watching Pierce Brosnan's movie. Second watch is the Planet Ocean 8500, a technological advanced watch that I wanted to buy the first day I started working but could not afford it until 2 years later after I got promoted. Therefore it is the watch that marked that happy occasion and remains my favourite watch until today. So, milestones matter. I guess.