What year was smith and Wesson 17-2 serial number k492125 made?

The Smith & Wesson Model 17-2, also known as the K-22 Masterpiece, was produced from the late 1960s to the early 1980s. Specifically, the serial number K492125 indicates that this particular revolver was manufactured around 1971. The "K" prefix denotes it as part of the K-frame series.