Is 30m WR okay in the rain?!? 😉🤣

I Wouldn’t worry about the rain 30m is plenty just make sure your crown is pushed in And you’ll be just fine

But the rain only fell through one atmosphere (1ATM).

It all about pressure, 30m = 3 ATM. The rain exists in Normal pressure at sea level, i.e. 1 atm, or less if your higher up in high altitude locations. Rain will never have enough pressure to penetrate a 3 ATM watch, well unless the crown is not seated/srewed in. So, no worries taking a 30m depth watch out for a stroll in the rain☔️

Oh! this looks quite a lot like my Timex, mine is a collab with an Indonesian techwear brand Orbitgear.

Technically the water fell from higher atmosphere which is at < 1 ATM of pressure …

But then as it gained speed up to terminal velocity, it gained > 1 ATM of pressure …

If you run and move your hands accelerate faster than 3G (not unrealistic) than 3ATM watch could be wet inside 🥺

Or play tennis for example

Imagine the water pressure at a depth of 30m. That’s what your watch has resistance to.

I’m glad I have my speedy to time how quick that turned into something it shouldn’t have 🤣

Yes, it looks like the joke is on me!!😮

But not differential. The watch will be equalised at 1 bar ambient. The the 3 bar is in addition (4bar absolute) 😉

Greater than 1bar? (metric this side of the pond). The terminal velocity could have been very slow depending on the wind resistance, why greater than 1bar? 1 bar is technically only possible at sea level

I was swimming in the Pacific Ocean with a lowly Seiko 5 with same 30M water resistance, as long as your gaskets are not old and worn out you should be fine

watch seals last 5 years before deteriorating because neoprene dies about then. faster if its a hand wind that gets spun a lot. Silicone grease can extend it a bit.

Oh my lanta my pea brain hurts! Lol

To be clear, this whole post and (most) replies are just played for laughs right? 😅

Having said that, as higher speed/flow = higher pressure. The falling rain drop as it hits the watch would have marginally higher pressure than a stationary one at ground level … again not trying to be very exact.

Yes, the post was just for a little fun! 😊

Of course! However it’s a hugely interesting question. Barometric pressure drops when it’s raining and when we talk about pressure most people think that this is fixed but it’s not, it’s rounded up/down. So I was thinking that although the terminal velocity of a rain drop is between 15-22mph, if the barometer pressure drops under 1000mb I wonder what the calculation is to determine how much millibars it would add, ( I would think microbar instead of millibar) but it’s a good question. When we talk watch pressure we don’t calculate absolute pressure, they are normally measured ‘by gauge’. I.e. minus atmospheric pressure (1 bar) so 3 bar gauge minus a microbar or 2 and we should be good.

Also..In use when we pop the crown and put it back in technically there is likely to be a pressure differential as the barometric pressure at the time of setting the watch will be locked in place and will be different to the changes that take place during the time when the crown is locked.

However I think we can safely say that it’s ok in rain.

😁

For others interested 1bar = 1000mbar (millibar)= 1000000µbar (microbar)🤣🤣

I wear my MK-1 Chrono doing a lot around water and have never had any issues! Great Timex by the way. It’s a shame that they quit making them.

I like this one a lot. I would like to get one with a bronze finish case, but they are getting harder to find. Yeah I wish they were still in production!

Yes, very similar! Yours is more streamlined. They are great little watches!

I’d join you to watch a YouTube video on the subject 🤝 with a “catchy” title:

Did @ZiggyS ruin his watch due to the water pressure of rain 🙀

The MK1 can and will always hack it! Woot! Woot! When the rainy season comes our way, I'll take a similar shot of both my Timex watches for WRUW.