Su Jia Xian is only 32 years old, but he's been talking and writing about watches for more than half of his life, building up a store of knowledge and experience in the world of horology that belies his age. The SMU alumnus with a double degree in economics and management now has his own blog, SJX Watches, which ranks in the world's top 10 watch websites in the English language. He writes for over a dozen publications in Asia and advises watch companies, auction houses, institutional investors and collectors.