Picked this up at a thrift $5. Good condition, running but not good. Needs service. Definitely happy about this pick up! Very rarely do I find a jeweled Timex, when I do the condition is horrible. I assume 1950s on this one? Can anyone identify the movement? It's actually in good condition with some green wearing on the back? Is this corrosion or just wear? Were Timex 400 top of the line for Timex back then? Also, does anybody have ads for these watches? It'd be cool to see how much they retailed for! Any info is great considering I know nothing about Timex watches! I hope I can get this serviced for a decent price as I actually really like this watch!