It began with a simple text message and ended with a Grand Slam trophy. A stinging Hingis return set up two break points, and she and Murray converted the second when Watson chipped a short ball into the net.
After fellow Swiss Roger Federer had claimed a record eighth Wimbledon singles title, Hingis and Murray delighted the Centre Court crowd with a 6-4 6-4 victory over reigning champions Heather Watson of Britain and Finland's Henri Kontinen.
Murray's win followed other British success at the championships: Alfie Hewett and Gordon Reid were victorious in the men's wheelchair doubles, while Jordanne Whiley, partnered by the Japanese Yui Kamiji, won the women's wheelchair doubles for the fourth successive time. When you come back here, it's just a special thing, a special occasion.
Murray, though, did not see the text until the following morning. Murray said: "I just saw him there". I was like, "Oh, my God, did he read it?"
"I'm not used to "no.' I don't take 'no" as an answer". But still the lefty, quite spinny, I found quite tough.
"I really enjoyed the whole week". This is the only tournament that still does it.
Content Watson enjoyed Wimbledon
But when asked whether she and Kontinen will rekindle their partnership anywhere other than next year's Wimbledon, she was unsure.
Hingis, 36, has now amassed six mixed doubles Grand Slam titles, 12 Grand Slam women's doubles crowns and also won five major singles titles, including Wimbledon in 1997.
The Scot admitted that, had it been anyone else asking, he probably would have said no. I'm so happy to reach the final again with Henri in the mixed.
"I have to say a huge thanks to Martina for playing with me". 'But it was a great opportunity. "One Briton was going to win a Wimbledon title this year and I was hoping it would be mine". Like, I knew I could do well with her. "It was kind of an easy decision".
The pair, who only got together shortly before the tournament, edged a tight contest, in which they gained advantage from breaking the Watson serve three times. The second set was a lot closer, with Watson & Kontinen bringing up a couple of opportunities to get into the lead, but again the top seeds were the ones to take the advantage, and to make it count.