A rotating bezel doesn’t make a watch a dive watch. All six watches below have a diver look, and their water resistance runs from 50 meters to 500 meters. Here is what each one is really for, so you can match the watch to what you’ll actually do in it.
| Watch | Water resistance | Best for |
|---|---|---|
| Casio (steel, 50m) | 50m | Daily wear, rain, hand washing |
| Seiko SKX009K2 | 200m | Recreational diving and daily wear |
| Omega Seamaster Professional | 300m | One watch for the water and the office |
| Fortis Marinemaster M-44 | 500m | The deepest rating here, with bold color |
| Breitling SuperOcean chronograph | Varies by model | Dive styling with a chronograph |
| Tudor Pelagos | Varies by model | A tool-diver look with a Swiss badge |
Casio 50m: the look without the depth

This Casio has a steel case and bracelet, a date window, a numbered ring around the dial and “Water Resist 50M” printed on the face. Fifty meters covers rain, hand washing and a swim at the pool, and that’s about it. Don’t read the diver styling as a diving rating. It’s an inexpensive everyday watch that borrows the look.
Seiko SKX009K2: the one that earned the reputation

The SKX009K2 is an automatic with “Diver’s 200m” in orange on the dial, a blue and red bezel, a day-date window at 3 and big round lume markers. Two hundred meters is a proper dive rating and plenty for recreational diving. Seiko no longer makes the SKX line, so these now come used or from leftover stock. It’s pictured here on a tan leather strap, and it takes straps well.
Omega Seamaster Professional 300m: the classic all-rounder

The wave dial is the giveaway. This Seamaster Professional pairs it with a blue bezel, a date window and “300m / 1000ft” printed under the name. It’s the one on this list that works equally well on a boat and in a meeting, and the dial texture catches the light in a way a flat dial can’t.
Fortis Marinemaster M-44: the deepest here

Fortis puts “500m – 1640ft” right on the dial, which is the highest rating in this group. The black dial has a square grid texture, the lume plots are oversized, and the orange minute track and seconds hand match the orange rubber strap. It’s the loudest watch here and also the most capable on paper.
Breitling SuperOcean chronograph: dive style, with a stopwatch

A chronograph adds pushers, three subdials and a lot more going on across the dial. This SuperOcean wraps all of that in a black dial with gold-toned markers, a matching bezel, and a day-date window. It reads as a dressier take on a dive watch. Breitling makes several SuperOcean versions with different ratings, so check the exact reference before you buy.
Tudor Pelagos: the tool diver

The Pelagos is Tudor’s professional dive line, shown here with a blue dial, a matching blue bezel, square markers and a fabric strap. It has a plain, purposeful look with the lume doing the work. As with the Breitling, the rating and size depend on the version, so confirm the reference.
How to choose
If you’ll mostly be on dry land, the Casio is enough. For real time in the water, the Seiko, Omega and Fortis all have the ratings printed on the dial. If you’d rather have a chronograph or a Swiss tool-diver badge, the Breitling and Tudor are worth checking at the reference level.
Casio 50m steel watch: Photo by Badreddine Farhi on Unsplash.
Seiko SKX009K2 Diver’s 200m: Photo by Brian J. Tromp on Unsplash.
Omega Seamaster Professional 300m: Photo by tnkn29 on Unsplash.
Fortis Marinemaster M-44 500m: Photo by Andreas Bentele on Unsplash.
Breitling SuperOcean chronograph: Photo by Bence Balla-Schottner on Unsplash.
Tudor Pelagos blue dial: Photo by Joshua katt on Unsplash.