apple watch reset

I got my watch stuck in airplane mode and I cannot reset or type my passcode on it because it fell and the bottom right bit isn't touch sensitive anymore. I am trying to erase the watch so that I can have a passcode that doesn't require the bottom bit, or no passcode at all. I cannot click 'ok' on the watch when I try to erase all contents and settings because the tick box is on the bottom right that doesn't work anymore. Any ideas how to get this solved?