Ex-Dundee United and Ross County defender Watson said: “It was a real sickener at the end, the boys put so much into it.
“I didn’t think we were under any real pressure and it's the actual last kick of the ball they've scored with so it's frustrating.
“We're trying to win this league and we're making it very difficult for ourselves.
“When you're going for a title you can't afford many slip-ups like that. We need to make sure we shut up shop and don’t throw away points.”
Arbroath still lead by five points from Cove and Stenhousemuir after they could only draw 0-0.
Alloa remain fourth after their 1-1 draw with Inverness in the Highlands, where A...