Newer S&W revolvers have the model number stamped on the frame,above the serial number. The date of manufacture will be in one of the many reference books about S&W firearms. Check Amazon.com.
Call Smith and Wesson with the serial number and the will tell you.
62092
You will have to find a copy of The Standard Catalog of Smith and Wesson and check each model number.
You will have to call S&W
On the butt and in the crane area.
You will have to call S&W to find out.
Standard catalog of Smith and Wesson by supica and nahas
The Standard Catalog of Smith and Wesson, 3rd Edition, by Supica and Nahas.
Find a copy of the Standard Catalog of Smith and Wesson, sn data is in it.
Look on frame inside the cylinder area to find the model number of a Smith and Wesson 357 mag snub 2 in stainless barrel
Go to Smith and Wesson's website and they will send you one for free.
You will have to call S&W to find out.