Serial Fits with observed -76's
http://speedmaster101.com/serial-quick-reference-to-78/
Bezel is correct, tall TACHYMETRE no accent, and drop serifs on 7's
http://speedmaster101.com/base500-bezel-identification/
Dial damage is significant - first because of looks, and second because is indicates lack of care by who ever serviced it.
Bracelet is later service item, modeled on the original.
The price chart is a useful tool for getting into the ball park for value - it is not rigid. If we look at the chart for "Good" it is 3800 and running at 3000.
The issue here is the dial. The easy thing to do is look up what a dial is selling for and deduct that from good and see where you get to. A brief ebay search turns up nothing but the last decent one I saw sell for about USD$500. So strictly speaking, the value is [ 3800 - 500 - (Cost of replacing dial) + (bracelet and endlinks, 250) ]
This gives us a ball park of perhaps $3400. Then I would take off money for the trouble of finding and fitting a replacement dial, probably $400 which would leave me with a "Value" of $3,000. Then I would go up or down as my intuition, mood or general pleasure or pain of interaction with the seller was, but not by more than 10% each way.
Then wonder is the service really ok, and could you live with the scratch - I could, for a price.
The value of a fine 76 remains strong, and it is hard to find very good ones. To find a watch without any issues at all - that would pass muster here, might be $6,000+ with correct bracelet and extract. So all the criticisms leveled here are fair, but do you really want to pay double for a watch that from a few feet away will be hard to distinguish, and will have to be protected to preserve its value.
A watch like this at a sensible price, will provide years of everyday enjoyment free of worry.
So what is the sensible price? For what the OP watch is, any price below $3,000 would find multiple buyers. The bracelet while later, has value, and certainly utility, and is hard to distinguish from a distance from the original 1171 - and in a watch like this, I do not care - as long as the purchase price reflects that.
Now look at things another way. You have $3,000 in your pocket.
What kind of serviceable pre 78 speedmaster on an Omega bracelet can you get for that?
This kind of watch, at this kind of price is exactly why i like speedmasters.