Jake Kerr (Class of 2014) has joined fellow former pupils Stuart McInally (Class of 2008) and Adam Hastings (Class of 2013) in the full Scotland rugby squad.
The 22-year-old hooker, who now plays down south for Leicester Tigers in the English Premiership, was one of seven uncapped players named in the 39-man squad for the upcoming Six Nations tournament on Wednesday.
Scotland’s first game is against Italy at BT Murrayfield on February 2 and Kerr, who left Watson’s in the summer of 2014, is in contention for the matchday 23.
While at school, Kerr lifted the Scottish Schools’ Cup on three occasions (U16 once and U18 twice) and was named man of the match in the second of his U18 finals in 2013/14.
He had already earned Scotland U18 caps whilst at school by the time he was handed an Edinburgh Rugby academy contract ahead of 2014/15.
During that season he played for Watsonians whilst training with the academy and sat on the bench once for the pro team.
He suffered a knee injury while with the Scotland U20s during the 2015 Six Nations, but battled back to play for Boroughmuir during 2015/16 and, in total, earned nine caps at the highest age-grade.
He then headed south to study at Loughborough University before the Tigers offered him a deal during last season - and this term he has been in cracking form for them domestically and in Europe.
As a result he has come onto Townsend’s radar as well as that of Scotland forwards coach Danny Wilson, culminating in this exciting call-up.