Davosa Watch Ternos Ceramic Automatic 161.555.30. Diving takes you into previously undiscovered spheres and into some of the last unchartered waters of the earth. Whether as a hobby or calling, it is a sport that demands resilience, good condition, strong nerves and a love of adventure on the part of the diver. One of the basic requirements of diving is to minimise the risks as much as possible, which is why good equipment is essential. This is where a watch that can resist extremes of water pressure and on which you can count in any situation comes into play: properties that are united in the Ternos series.