This stainless steel watch band tool will help you get those little spring bars in and out of your watch casing. If you just shot a spring bar across the room and lost it in the carpet, you can buy more here.
“I used this to get an old strap off a watch. It was very quick and easy to do. I had purchased this with a strap, however the strap is quick release so I didn't need the tool to put the strap on.”