Abbreviation of “watch idiot savant”—a term used by watch nerds to refer to themselves in all kinds of watch forums.
The typical way to determine if somebody is a WIS, is by loudly proclaiming that you are about to buy a <INSERT FASHION BRAND HERE> QUARTZ watch. A real WIS will furiously interrupt you, only to teach you three essential things:
1. <FASHION BRAND> is not a real watch brand. WIS will narrate a 20 minute story of horology and how the only watches actually worth buying are from Switzerland, Germany, or Japan.
2. Only mechanical watches are real watches—screw quartz! If you don't need to routinely adjust the time on your watch, you're not appreciating it's heritage.
3. WIS will advise you to start with a Seiko 5, now that you decided to start collecting watches …
, Tudor is a more understated choice than Rolex: You won't get envious views from your non-WIS co-workers when you're desk diving wearing a Pelagos.