US market Polerouter 204612/2 with undesignated dial, generic outer caseback, 11-63 datestamp on inner caseback, and 218-27 '17 jewels' microrotor movement marked with HON import code.
This one is very dear to me. It's my first proper watch and I got it when I was about fourteen from my father, after bugging him about one for a long time. I've been wearing it daily for about ten years, before I bought a red bullhead and alternated between the two. It shows its scars and I remember most of the reasons in the schoolyard.
Amazingly, it has been running for about 30 years nonstop and never missed a beat. It's more accurate than a Longines VHP that I keep next to it in the quartz corner. 😀