Despite failing to feature on her previous two attempts at the highest level, the Francis Graffard-trained five-year-old was not to be denied on this occasion.
Having backed up her Group Three success at Haydock with a Group Two victory at Deauville, the daughter of Dubawi had little trouble in adding the 12-furlong prize to her haul.
Racing in midfield for much of the race, the former David Simcock-trained mare pressed on together with the John Gosden-trained Journey around a furlong and a half from home.
With little to separate the pair, it was only inside the last 100 yards that Bateel gained the upper hand to register her third triumph of the campaign.
Graffard said: "To win a race like this, all credit has to go to the filly. She loves soft ground. She has a lot of character, and the team at home has done a great job with her.
"Her morning rider knows her by heart. She worked well coming into this race.
"Pierre-Charles (Boudot) gave her a good ride, as he never let Journey out of his sight. She is a filly with a lot of stamina, and that showed in the finish.
"She is not entered in the Prix de l'Arc de Triomphe. When the entries were being made, she wasn't at this level. She has another option at Ascot.
"She runs well fresh, and the Arc is in three weeks. I am ready to supplement her if she is well, but I will have to talk to her owners.
"Today she was a bit uptight in the parade ring but not in a bad way. The gamble has paid off."
Frankie Dettori was pleased with Journey's effort and reports Champions Day at Ascot to be her next port of call.
He said: "She has run very well and she was beaten by a filly who handled the ground better than her. She will now be aimed at the British Champions Fillies & Mares Stakes in October at Ascot."
Dschingis Secret enhanced Arc claims when springing a surprise in the Qatar Prix Foy.
In a race which was expected to revolve around Japanese raider Satono Diamond, it was the Markus Klug-trained four-year-old who stole the show in the mile-and-a-half Group Two.
All looked set to go to plan for the Yasutoshi Ikee-trained Satono Diamond with Christophe Lemaire positioning his mount to take aim at his front-running stablemate Satono Noblesse as the field turned for home.
The writing, though, was soon on the wall for the short-priced favourite, with Dschingis Secret, together with the Andre Fabre-trained pair of Cloth Of Stars and Talismanic, moving on approaching the final furlong.
Responding well to pressure, Dschingis Secret pulled out plenty when required to come home a clear-cut winner under Adrie de Vries, with Cloth Of Stars and Talismanic taking minor honours.
Clive Cox's weekend got even better as Lady Macapa landed the Qatar Prix du Petit Couvert.
Less than 24 hours after Harry Angel provided Cox with another Group One sprint at Haydock, his three-year-old filly took her form to a new level.
Off the track since finishing third to Magical Memory in the Hackwood Stakes at Newbury in July, she was never too far from the pace under Luke Morris.
As Kyllang Rock dropped away, the main challenge came from Pascal Bary's Gold Vibe, with David O'Meara's Fashion Queen also flashing home, but Lady Macapa hung on to claim the Group Three prize.
Cox said: "It was a wonderful result and that was very special.
"She is a filly that had promising form and was placed in a Group Three at Newbury last time. She enjoyed the soft ground there today and Luke Morris gave her a super ride.
"I'm thrilled for John Law and Michael Johnson as it's their first venture into horse racing and I am pleased it was a success. I think with conditions today, it made stamina important.
"With regard to being a sprinter, I think her ability to win over six helped her in those conditions.
"She is not in the Abbaye. We were hoping to win a Listed race, but she has jumped a gear there. From a breeding point of view, it is job done and I could not be more encouraged by that performance.
"It's great to be in great form in Group races."