Yes, slow is the key, at least that's the method that I use. It's not crock pot slow though. There seem to be an endless variety of methods online. Very low heat, moderate heat, oven, stove top.
I use a deep-dish cast-iron pan on stove top. Not quite a Dutch oven, but that would be fine. With a bit of oil, sear the chuck roast on both sides for a couple of minutes each on moderately high heat. Turn the temp way back a higher end low. Cover most but not all of roast with water. I add a bit of sea salt and pepper. After a simmer returns, mostly cover and go about two to three hours depending on weight. I add a few onion slices, small potato slices and carrots to the pan during the last 30 min. or so. If the roast had decent marbling, it will be very tender and very good.