The 23-year-old lost the first set but came back to beat her 30-year-old Belgian opponent 3-6 6-2 6-3.
It marks Watson’s third title, after her triumphs at the Japan Open in 2012 and Hobart International in 2015.
She posted the picture above on her personal Instagram account after the win and wrote: Kisses with bae #3 ….
“To all those that support me, back me, and believe in me, most importantly through the tough times when it’s not so pretty, when it’s tough, and when it’s hard.
“Thank you and I love you, you know who you are X.”