No - Celebrity named their ships after wrist watches, too:
Silhouette, Reflection, -
Sure there's many more....
Also - your forgot these:
Norwegian Dawn - Dawn Princess
Norwegian Sky - Sky Princess
Norwegian Sea - Sea Princess
Norwegian Star - Star Princess
Norwegian Sun - Sun Princess
Seven Seas Mariner - Mariner of the Seas
Seven Seas Voyager - Voyager of the Seas
Seven Seas Navigator - Navigator of the Seas
There is a list of names here, there are many more:
List of cruise ships - Wikipedia, the free encyclopedia
Just for fun - lets come up with our favorite ships names, and seriously, I would have to put Destiny on my list. Basically, I think a ship should evoke a feeling of having transcended the ordinary, and empowerment along with free will.