Realistic water resistance at depth. Exp 2.

[Offshore]

I have no qualms about swimming with my exp2 and it rarely left my wrist this summer. I have full confidence in it's water resistance when messing around in the sea.

I'm planning on diving with it in a couple of weeks for the simple reason I'd prefer to have it on me than leave it ashore in a dive bag. It won't be used for timekeeping as I'll have a couple of dive computers.

I rarely exceed 40m / 130ft and never go beyond 150ft. I know it's not a sub but is this a reasonable proposition?

I've had watches in the past with a nominal 50m rating but with the practical water resistance of a cardboard box. Hopefully rolex are different.

The watch is around 3 years old and as I'm sure you're aware has a 100m rating.