Welcome!
It looks to me a nice standard issue 806 from 1970 in Ok condition. The appearance would improve immensely with a new crystal. They only cost $10 or so, plus the cost of having a watchmaker fit it, but find a good watchmaker to do it, not a chain jeweler in a shopping mall.
Much of what you would ever care to know can be found here:
http://kurt-b.com/publication-of-my-wor ... al-journalFor values, suggest you look at completed auctions on eBay, assuming the watch is all correct. Lots of 806s for sale through dealers and enthusiasts on-line too will give you the right ballpark.