Watt originally arrived at the Marstons Stadium in October 2013 after a brief spell with Coalville Town
He was the Nailers talisman in the promotion winning team in the 2013/14 season, captaining the side and leading by example with some huge displays at the heart of the Belper defence in that successful campaign.
Watt then rejoined Grantham Town at the start of the 2014/15 season before he returned to the Nailers in October of that season.
The centre back made his 100th appearance in a goalless draw away to Chasetown, with Watt continuing to show his class as he helped his side to an impressive clean sheet.
After receiving his award, Watt tweeted; “Thank you for the recognition, much appreciated, looking forward to many more #UpTheNailers.”
Watt was presented the award by club Chairman Alan Benfield before the Nailers 1-1 draw against Carlton Town in which he played 90 minutes.