Can the Tactix 7 Pro Be Used for Diving?

lustyd said:

the whole purpose of 10ATM is to get to recreational diving depths.

No, a real (scuba) certification is 200m or 100m + the standard already posted by Volker, which certifies these watches.

It doesn't matter if it's Garmin, Suunto or any other manufacturer.
100m only watches are not recommended for diving by the manufacturer.

Here is an example from Suunto:

https://www.suunto.com/en-us/Support/Product-support/suunto_ambit3_peak/suunto_ambit3_peak/care-and-support/water-resistance/ 

This is an extremely recent certification and changes nothing. My Suunto dive watch doesn't have this certification either, it simply didn't exist. The watch is and always has been waterproof to 100m and will not leak despite all the hand wringing on this and other forums about static vs dynamic pressure. DCRainmaker has commented on this extensively

lustyd said:

my Suunto Stinger.

The Stinger is a 200m DIVE Computer

I know, I have one next to me

lustyd said:

My Suunto dive watch doesn't have this certification either, it simply didn't exist. The watch is and always has been waterproof to 100m and will not leak despite all the hand wringing on this and other forums about static vs dynamic pressure. DCRainmaker has commented on this extensively

I really appreciate DC's opinions, but I don't know if DC as a triathlete is the right person to talk to on this one.

You are going around in circles. The fact is that a 100m watch is not OFFICIALLY certified for diving. Unless it also has the certification already published by Volker. A dive computer like your Suunto Stinger is 200m certified. Completely independent of whether it has the extra certification, it is designed by the manufacturer for 200m. And the Stinger is designed specifically for the purpose.
The tactix/fenix is NOT. It is only 100m and neither designed for diving nor certified for it.
Whether it withstands the pressure ? It can be. But it does not have to be.

Should DC claim that the fenix/tactix are designed for diving, there are many opinions that contradict this.

„

Further, 100m (10 ATM or 10 bar) is a swimming watch, capable of full immersion, but not diving.

At 200m, we begin to enter dive-watch territory, suitable for higher-pressure depths in the water.“

https://www.fratellowatches.com/spoiling-water-resistance-good-watches-dont-need-to-swim/ 

10 ATM/10 Bar/100M: At this point, real water sports like swimming, snorkeling, boating, etc. should all be possible. This is the kind of water resistance I would look for in any daily wear, just for added security.

https://www.bobswatches.com/rolex-blog/watch-101/waterproof-watches-vs-water-resistant-how-to-tell-the-difference.html

This is simply not true, there's a ton of misunderstanding on this thread between pressure ratings, dive watches and depth guages.

The watch is certified to 100m depth and is entirely capable of doing so. There is no further certification the Fenix or Epix would be eligible for since they don't meet the requirements for depth guage/dive computer en13319 (it has no depth sensor) or dive watch ISO 6425 (it fails almost everything including visibility, timers, minute markings, etc.). The lack of dive watch certification does not mean it will leak, it simply means it's not a watch designed for use as a dive timer. Arguably the watch can time a dive, but since the buttons are not certified at depth this might be inoperable.

Garmin would be in all kinds of legal bother if the watch leaks at 40m. There have been PLENTY of actual dive watches over the years with 100m ratings. These have generally had timer bezels and glow in the dark hands.

lustyd said:

Garmin would be in all kinds of legal bother if the watch leaks at 40m.

Why should this be so, when Garmin itself already states that the tactix/fenix is NOT designed for diving ?

Interesting to note that the only notified difference between the Garmin Decent and the Fenix series is that the the decent is tested to EN13319 which does not relate to water resistance. Both are 100m watches  

While the Fenix may not be a diver, it has 100m water resistance so it should be able to be taken diving without issue up to its states WR. All watches may have issues with their seals etc, whether 30m watches or 4000m watches. Lesson there is check your seals.

As an aside, while DC may be a triathlete, he’s also a diver.