Watch face with Tide???

Looking for a watch face with time and current tide on it, this would make my rip curl watch totally redundant and I believe sales of the Garmin watches go through the roof. All I can find is a tide 'app' for the fenix 3. I've got a forerunner 235.
Looked at developing one but my limited computer skills is restricting me to not even being able to install the developer program...
Can someone tell me if this watch face is even possible or If anyone out there is working on one?

Cheers

Gussy

Unfortunately this isn't possible for tides.
You need a data connection, and watch faces are restricted by Garmin. No data connections possible for watch faces.

Hi guys. 

Has anyone had any joy with this? 

Tidal face:

apps.garmin.com/.../2fcce126-f5cc-4b3f-bd7e-36047612288c

It seems all mentioned apps or watch faces require internet connection for tides. But how Casio did it with very basic electronic watches without any connectivity?

Bodya said:

But how Casio did it with very basic electronic watches without any connectivity?

My guess is that they did something very different!

Tide time calculations are not as simple as looking up the position of the moon versus the planet... for example, the double tide you get around the Isle of Wight in Hampshire... if you look at a tide station just a few miles from the IOW, you get very, very different tides.

So...

Either a) they did something that you are unaware of with data or b) they did it inaccurately!

That said...

A once a day Internet connection to get tide times for the a couple of days at a time doesn't seem too onerous.

I never owned these Casio watches, and guess probably Casio do it just based on Sun and Moon positions or in case watch has GPS, it can contain some kind of database where tide curves stored for set of locations. Of course it can't be very accurate as winds, currents, temperatures etc are not part of  equation.