Takes a major licking and keeps on ticking - Marathon General Purpose Mechanical Wristwatch w/Tritium, GPM

So I've worn this watch for several years now and only take it off when I'm taking a shower or having s*x with my girlfriend. Its run the gauntlet and been on my wrist the entire time and still looks new, no scratches on the crystal or watch body. I've never wound it manually, it used to run on the money but now its about 10 minutes fast per day. Its a Seiko movement and must be a pretty good one to take all the abuse. I love the tritium gas bulbs on the face and they are incredibly bright at night.