Strange 1960's Aquastar "watch"! Anyone knows more about function/history?

[wimbynizer]

As this is my first thread, I apologize if I have posted it in the wrong forum.


I have come across a strange diver's watch from distinguished watch manufacturer Aquastar. I bought it on a whim (approx $ 50) and is now interested in hearing more about its background/function.

-Does it even function as a watch? What's up with the 0-8 dial?
- How rare/ common is this type of watch?
-Is it worth anything more than my $ 50?

(Sorry for the bad quality of the image, I have not yet recieved it from the seller)

Thanks on beforehand

/André from Sweden

[wimbynizer]

Let me add that I own a Rolex and a Tudor and have been a lurker on rolexforums.com for some time. Hence, it seemed natural to try to take advantadge of the collective knowledge in this non-rolex issue.

André from Sweden

[WatchTimes]

Aquastar makes some neat watches and wrist tools. I believe this is one of their dive pressure gauges. Not certain though.

[kilyung]

It's not a watch but a no-decompression limit timer for divers. It's not very rare and usually sells in the $30-$40 range as a historical novelty as divers now use dive computers.