$12 Casio Diving Watch!? MythBusting Water Resistance

Check out my shorts to see the test done by holding it up in the air, pressurizing the tank and then lowering it into the water to look for bubbles. Future videos the test will be performed this way. Hopefully this still shows the ability of the watch regardless! Thanks everyone!

Harrison just single handedly destroyed the diving watch market haha

Finally, the whole story about water resistant watches. That took nearly 10 years of watching YT reviews to get to this comprehensive detailed video. Bravo..!!

It’s revealing and depressing at the same time. In reality all we need is a $12 watch unless we are going to the Operatic theatre.

I took an F91W on my PADI Advanced course and went down to 100ft. It was absolutely fine.

I’ve been telling this to the dive watch and watch community in general for years and the topic has almost always become heated. Thank you for your video.

Finally, a comprehensive answer to the "maybe you can wash your hands with a modern 30m water resistant watch" people. I swim with my speedy all the time.

Very interesting! I’ve never even considered any watch less than 200m and I don’t even dive anymore 😂

One specific thing you did not mention about ISO 6425 is that this standard requires every single watch that is being produced, to be pressure tested up to the rated depth + 25% and remain at that pressure for 2 hours. After that test, a condensation test must be performed to check for water ingress. This means that if you buy a watch that has "DIVERS 200 m" on the dial, that that very watch has been at a pressure equivalent to the rated depth + 25%. I am glad that you debunked the myths about water resistance.

I don't think you're using the machine correctly. Your meant to pressurize with the watch above the water level. Let it sit. Then lower into the water. Then slowly release the pressure and watch to see if bubbles are released from the watch.

I think the minimal water resistance rating on the basic Casios is partly because you're not supposed to operate the buttons under water. But I believe you can do so on the basic G-Shock square DW5600. That's a $50 watch that does almost everything, and you can drag it through hell. On the low end, I prefer the F105 to the F91 because of the EL backlight, which is like Timex Indiglo. Similarly, in stainless (with a metal plated resin case), I like the A168 better than the A158 for the same reason. Overall, it's incredible how good these are for the money.

I think it was 1971 when watch makers had to stop calling their watches waterproof and instead say water resistant. You will often find vintage watches from the early 70's where the case back will say water resistant but the dial will say say waterproof. This is because the dial was made before the date of the change. Most diver type watches will state the minimum water resistance and rarely the maximum. The Vostok Amphibia has a 200m water resistant rating but has achieved twice that. 👍

I wear my F91w during my swim work outs in the pool. I swim 1,5 km twice a week, doing all kind of strokes, freestyle, butterfly, back stroke, breast stroke... no problem! Works perfectly fine! 👌😊 It really must be the best watch for the price and with a cool history to go with it! Can't go wrong! Great video! Thanks for clarifying!

Awesome video! I believe you have to pump up the pressure while the watch is above water for the air to get in the case, than submerge and release the pressure above to see if the high pressured air (should it have got in the case) now escape to equalise the pressure.

funny thing is that I used to snorkel-dive with a swatch all thru the 1980's to depths of about 15 feet. This is what most recreational watches go thru. I never had a leak. Fast-forward to recent times and manufacturers tell usthat the same "30M" rating is only good for "splashing". Shows that these companies lowered standards to what they wanted to, to achieve cost-savings and reduce liability. As a side note, the author of this video is quoting the "new" ISO rating that came out 12 years ago and is optional (ISO22810). Most companies still use the older 30-100-200 ratings that had the "splash"/"Swim"/Dive levels.

By far the most interesting video in any YouTube watch channel in ages

A small step for the F91W - a huge leap for GodTier watch lovers

Thank you. It’s about time someone did this. Liked and subbed. 🙏

Seriously excellent content. Bizarre that it's so hard to find this kind of content online, you're unique in this field. Thanks for making this video!

Super fun video! Thanks for all the useful information. Love your content.