Your .32 looks perfect in your picture, but it is definately refinished if the trigger and hammer are nickeled. Grips look to be in great condition if they are original.
You do have a .32 SA, 4th Model. S&W made more of this model (240,000) than any other. The 6" barrel is something you have going for you, since they are a little scarce, with 3" and 3 1/2" being most common. I would say that you paid what published information says it would sell for, including the refinish. I would consider having the nickel removed from the hammer, trigger, and guard. If the re-nickel is high quality, you would gain value by doing this.
Without close photos, it is difficult to tell the quality of the re-nickel, but if lock-up is tight and timing is correct, standard .32 S&W rounds will be fine and are still manufactured today.
