Dramatic, dark, swirling clouds and water effects.

The ad opens with dramatic, dark, swirling clouds and water effects, transitioning to a close-up of a Certina watch with water droplets. It then shows a person submerged in water, followed by a sea turtle swimming, and finally a close-up of the watch's case back with a sea turtle emblem. The ad concludes by showcasing four different variations of the Certina DS Super PH200M watch.