Can a watch with 100 meter of water resistance be a dive watch

I personally think it can be a dive watch, but just not a very good one

Go for a swim, and let us know. 😁

200m and screw-down crown

A 100m is a bloody long way down. Unless you're very serious "For most swimmers, a depth of 20 feet (6.09 meters) is the most they will free dive. Experienced divers can safely dive to a depth of 40 feet (12.19 meters) when exploring underwater reefs."

I’ve used my Seiko SSK001, 100m WR with no screw down crown many times with absolutely no issues.

Yes, absolutely.

The first dive watches didn't have high ratings ( tho they were probably crap, tbh)

Folks get a bit nutty over w/r imho.

Here's an oil filled F91W at nearly 5000m.

Depends on the watch.

I've been saturation diving with an F91W many times just to see what would happen. Just don't use the pushers underwater and you're fine (the only one I flooded was when I tried to switch modes underwater). Same with swimming. Never had an issue. And if I ever do, well I guess I'm out $15...

You can buy A LOT of Casios for the price of a Tudor Pelagos 😆

That’s not really how water resistance ratings work though. It’s rated for static pressure, so once you start moving or the water is moving, you need a higher resistance.

100 meters resistance with push-pull crown probably fine for swimming. But I have a hard time letting myself do it!

Saved this pic btws.

Here's one from a another WC member at depth of 30m

To be an ISO rated diver it needs to have 200m WR these days. Up until a few years ago 100m WR was the standard.

The better question would have been; Do you need a "Diver's" watch to swim, or dive?

By modern ISO standards, it would not classify.

But you could definitely dive with anything, provided seals are good.

I'd encourage many to read the Hodinkee article, and take a close look at what this Marine Biologist dives with regularly.

https://www.hodinkee.com/articles/tale-of-two-isos-what-water-resistance-ratings-really-mean

And dynamic pressure, or jumping/diving/swimming at depth doesn't do anything.

Unless you are riding a torpedo, or are Aquaman. If a human is capable of influencing psi, they should see thier local Olympic swim team tbh.

Depends on the dive I guess.

Yes if you're a speed boat or are cliff diving but even Olympic swimmers can't add 100m of pressure.

I mean swimming shouldn’t be a problem with 10atm water resistance, but I wouldn’t go scuba diving with it. Would you?

The original dive watches were rated to 100m

I take my Submariner off to tie my shoelaces 😂 And the only watch I wear swimming is my 600m Squale. 😋

Haha so you don’t really trust the rating then? 😂 G-Shock for me when I go swimming

At best WR is correct when new. I have no idea how long it lasts or if it's been compromised at some point so no I don't risk it when I have other options. But that's the same regardless if it's 100m or 200m.

Just for snorkelling with luck

Since mechanical watches stopped being used as tools for diving long ago, it’s time we accept that “dive watch” is a fashion category and the specs have more to do with marketing than practical application.