SW 686-3 .357 mag recommend parts?

[TTB4570]

Hey Gang,
I just got my hands on a S&W 686-3 in .357 mag.
I was wondering what parts I should keep on hand to keep it running for many, many years?

This is my first revolver designed after 1890 so I'm already in the habit of keeping parts on these strange clockwork machines.

Thanks,
TTB4570

 

[enefgee]

You won't wear it out unless you intend to shoot it almost constantly for the next 30 years. I've only seen 1 686 that was out of time in the last 40 years. Treat it well and it will last pretty much forever.