"Today, Each and every brand has master source arranging, and when it comes to figuring out reference numbers, it will come right down to what's effortless and flexible for your program," TAG Heuer's Biebuyk mentioned. This changeover started in the '60s and '70s as brands began to use rudimentary desktops https://www.watchesworld.com/a-history-of-watch-reference-numbers/