According to the book it should be 1983.
There is one caveat on the three-letter, four-number serial numbers. There are often large gaps in sequence, or a sequence used for special runs before they were due to be used, etc.
The only way to know for sure is to get a letter from S&W, (true for all Smiths, but more so for these serial numbers) but unless there is some collector value to the gun, it may not be worth the cost.
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