Watches by water resistance

Water resistance ratings are conservative and widely misread. Here's what each means — and the watches that hit it.

30m (splash)

Handwashing and rain only — not for swimming. Common on dress watches.

Showering and light swimming.

Swimming and snorkeling — the everyday-rugged sweet spot.

ISO-dive-capable territory — scuba and hard use.

Serious dive watches with screw-down crowns and beefy gaskets.