300m+ (pro dive) watches
Serious dive watches with screw-down crowns and beefy gaskets.
What 300m+ water resistance actually means
30 bar static, the professional end. Typically paired with a screw-down crown and thicker gaskets, and usually — though not always — certified to ISO 6425 rather than only ISO 22810. Worth checking the dial: the word DIVER'S is a regulated marking, whereas “300m water resistant” on its own is only the pressure figure.
| Watch | Movement | WR | Case | Crystal | Style | Tier | Buy |
|---|---|---|---|---|---|---|---|
| Steinhart Ocean One | Automatic | 300m | 42mm | sapphire | Dive | Mid | Amazon → |
| Tissot Seastar 1000 | Automatic | 300m | 43mm | sapphire | Dive | Upper | Amazon → |
| Christopher Ward C60 Trident | Automatic | 300m | 40mm | sapphire | Dive | Upper | Amazon → |
| Certina DS Action Diver | Automatic | 300m | 43mm | sapphire | Dive | Upper | Amazon → |
| Squale 1521 | Automatic | 300m | 42mm | sapphire | Dive | Upper | Amazon → |
| Marathon TSAR | Quartz | 300m | 41mm | sapphire | Dive | Upper | Amazon → |
| Marathon GSAR | Automatic | 300m | 41mm | sapphire | Dive | Upper | Amazon → |
| Longines HydroConquest | Automatic | 300m | 41mm | sapphire | Dive | Premium | Amazon → |
| Oris Aquis Date | Automatic | 300m | 41.5mm | sapphire | Dive | Premium | Amazon → |
| Monta Oceanking | Automatic | 300m | 41mm | sapphire | Dive | Premium | Amazon → |
| Tudor Pelagos | Automatic | 300m | 42mm | sapphire | Dive | Premium | Amazon → |
| Sinn U1 | Automatic | 300m | 44mm | sapphire | Dive | Premium | Amazon → |
| Omega Seamaster Diver 300M | Automatic | 300m | 42mm | sapphire | Dive | Premium | Amazon → |
| Rolex Submariner | Automatic | 300m | 41mm | sapphire | Dive | Premium | Amazon → |
| Tag Heuer Aquaracer Professional 300 | Automatic | 300m | 43mm | sapphire | Dive | Premium | Amazon → |
| Doxa Sub 300 | Automatic | 300m | 42.5mm | sapphire | Dive | Premium | Amazon → |
see dive watches · other water resistance: 30m · 50m · 100m · 200m