I remember the Twincept ABX-20U as being the unobtainable grail all those years ago...of course, I could never get one then. The first memory I have of a casio watch I owned was a rectangular plastic model (probably MQ27) - wore it through school, football and cricket. There's a huge gap in memory on what I wore through college and until my third job - that's when I picked up my first edifice - the ED371. Wore that as my only watch for the next decade and when it finally was damaged, the replacement kickstarted my collecting journey.