Certina Watch DS Action Diver 43 C032.607.22.051.00. Water is the source of all life. Perhaps this is the reason why humans have always been so fascinated by this element. Certina also succumbed to the magic of the oceans long ago, dedicating a series of timepieces to life above and under water. Certina's passion for the worlds oceans dates back to the 1960s, when the brand equipped two underwater projects that aroused international attention.