Leclerc's victory propelled himself and Ferrari into title discussions as they once again narrowed the gap to Max Verstappen and Red Bull.
After suffering through years of 'the Monaco curse', Leclerc scored a precious victory around the streets he grew up on, and will be hoping for similar success from his latest investment.
Leclerc invests in passion alongside Ronaldo
Soon after his Monaco victory, Leclerc was announced as an investor in Chrono24, the self-described 'leading marketplace for luxury watches'.
Watches and F1 seem synonymous with one another. From the stopwatches which timed laps during the series' nascent years to the timepieces flaunted by today's drivers in the paddock, Leclerc is extending the link through an investment of an undisclosed sum.
The 26-year-old told the brand's official website: "The world of watches has long captivated me as one of my many passions.
"There is a real community of watch lovers all over the world. I am delighted to be an even bigger part of this community through my investment in Chrono24."
Leclerc has been known to wear some luxury watches in and out of the paddock, and they can be spotted across his social media pages.
Leclerc joins fellow athlete and iconic footballer Cristiano Ronaldo in supporting the company. The Portuguese star invested in 2023.
Chrono24 CEO Carsten Keller added: "We are very proud to welcome Charles. This exceptional athlete is highly valued beyond the world of motorsport and shares our passion for watches and our company's pursuit of excellence.
"His knowledge is impressive and together we are ready to reach new heights."
Leclerc's next race against time will be during qualifying around the Circuit Gilles-Villeneuve this weekend at the Canadian Grand Prix.