Nineteen of Daniil Medvedev's 21 titles have been earned on hard courts
A comeback Medvedev claimed his initial title for 882 days with success over Frenchman Moutet in the competition championship match.
Medvedev, a former number one, has had a torrid year, achieving just one match at the big events and experiencing a difficult moment at the US Open.
The player's varied form on the tennis tour - and struggles with his serve in specific - resulted in him falling of the top ten and finally splitting with former trainer Cervara.
Presently training with Johansson and Goetzke, Medvedev has steadily advanced in the last few weeks - peaking in a hard-fought competitive triumph over challenger Moutet.
This marks Medvedev's first title following the Italian tournament and maiden on a hardcourt after March of that year.
Victory also indicates he has achieved 21 championships at 21 various tournaments.
"This marks the first occasion I am participating in a event with my both daughters simultaneously, so to win a championship is particularly special," commented world number 14 Daniil Medvedev.
"This championship is in honour of my child Victoria, because the maiden victory I won when my child her name was born was for her."
The athlete, the past champion, had failed in his last six finals, comprising in the German tournament previously this season.
The player's retrieving play style and regular emotional displays on court had caused observers to wonder if his ability to play at the highest level was concluded.
Yet the 29-year-old has implemented adjustments in recent weeks, making an effort to come to the net and compete assertively, reinforced by an improved serving game.
Medvedev came back from a break down in the opening set against the difficult opponent, taking 4 of the final five points to gain the advantage.
Both players swapped break points in the second set before the Frenchman, bidding for his maiden ATP Tour victory, took control to push for a final set.
Moutet saved four early chances in a competitive final set before the Russian broke to fifteen to close out the victory.
Fittingly, the winner clinched the win with a rally at the net, with the Frenchman failing to control a return after over two and a half hours.