There is no way to know when it was built, unless it was a custom order. The best you can do is when it was shipped from the Smith and Wesson wareshouse. You will need to call Smith and Wesson to find out the ship date as publishe sn data does not cover this sn.
The lower the serial number the younger the pistol is
What model?
Depends on the model and serial number.
NO
1978
you would need the model number as well as serial number.
Go to: www. proofhouse.com with serial number.
Will need model name to answer.
1918
PC0327
what is the SERIAL NUMBER ??????????
Impossible to do with just the sn.