But rather than see himself as the hero for slowing a stirring Ireland fightback, the Edinburgh flanker instead serves up his performance as all the warning he and his team-mates need as they head across the Channel full of hope for Sunday’s match in Paris.
Watson, who hauled down Sean O’Brien and then Paddy Jackson as they darted for the line during a breathless first half at Murrayfield, said: “By no stretch of the imagination was it a perfect performance. There is a lot of stuff that individually I and all the other boys need to work on. There’s stuff as a team that also needs brushing up.
“We made mistakes and probably should have put the game to bed a lot earlier. We had a chance just before half-time to stretch our lead even further but Ireland intercepted it.
Hamish Watson wants to end Scotland's torrid record on French soil
Hamish Watson played a key role in Scotland's opening day win over Ireland
“But what the performance does show is that we have the character you need to grind out the win.”
And Watson admits Scotland will need to show similar grit when they come up against the muscle-bound French, who prevented England from finding cruise control at Twickenham on opening weekend.
“They are a big pack and will pose a different threat to Ireland,” he said. “We know they are going to scrum well and have been concentrating on that. But it’s nothing we can’t deal with.”
The Scots have not triumphed on French soil since Jim Telfer’s side claimed the last Five Nations title 18 years ago.
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Watson was only seven years old when a side containing the likes of Gregor Townsend, Kenny Logan and Gary Armstrong ran in five first-half tries to leave Les Bleus stunned.
But while that win may have come too early for him to register it, he is desperate to emulate the class of 1999 this Sunday.
“I’m not going to lie, I can’t even remember it,” he said.
“We obviously haven’t won there for a long time [and] France away is tough for any team. We’ve beaten them at home a few times but this is great opportunity for us to make some history by beating them over there.”