I’ve been talking about watches a bit recently, and will keep doing so for a bit longer, so I thought a quick post on what water resistance ratings mean to me would be handy to post.
The first thing to note is that no watch is really “waterproof” which is why you see the term “water resistant” and typically this is given in one of two metrics. As a pressure metric, 10bar/ATM (I’ve seen it both ways, no clue) water resistance, or as a depth, 100m water resistant. Both of those are the same (because of how watches are tested) what is being tested is how resistant the watch is to pressure from water. The deeper you go in the ocean, for example, the more pressure is being exerted on the watch.
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