If you are a diver and a fine watch enthusiast, you probably know all about the Rolex Submariner watch: it is sturdy, waterproof up to 1,000 feet (300 metres), and sharp looking to boot.

When it comes to watches, I favour simple over fussy. That is why I like two Submariner Date steel models; one with a black dial and a rotatable bezel, and a very similar model with a green bezel. Both feature a substantial Oysterlock bracelet and white hour and bezel markings for a clean and crisp look.

I do not like as much the models combining steel with 18-carat yellow gold, and featuring either black or blue dials and bezels, and gold markings. To me they look more like the watches one would wear to work or out on the town rather than in the depths of the sea. But - I said it before and I shall say it again - there is no arguing about individual likes and dislikes. If you prefer the dressier Submariner Date models, then, by all means, wear them. After all, nobody will give you grief about wearing a Rolex!

No matter what they look like, all Submariner Date models are solid and robust underwater, but if you are diving deeper than 1,000 feet, Rolex's Sea-Dweller 4000 offers a better impermeability. And, if you are more of a terrestrial sports enthusiast, the Explorer II watch would be a good choice for you.

Of course, the Submariner can be worn even by the most unlikely people. In the film "Airplane!" Jeff Bridges has a Submariner around his wrist, not a "pilot" watch like Rolex's GMT Master II or Air-King. And Robert Redford wears it in "All the President's Men;" which only goes to prove that journalists are often in hot water!

More recently, Nicolas Cage's character in "National Treasure" wears a Submariner date, and even refers to it by name in the film.

But the Submariner really found its sea legs with the legendary amphibious daredevil James Bond, who wore this watch in several early movies.