How to open Dali Softwatch

I hope nobody minds my posting about a watch which isn't a brand, but I just picked up a really really unusual watch.

My wife has had one of these for the last twenty years or so but I have never even heard of one in a man's size. And with a man's length strap.

It seems to have a one piece case, and there are lots of comments online concerning replacing batteries in these ladies watches. Most of the postings mention the need to push the movement out through the crystal in a one piece case without screws. But hers does have screws and we have replaced the batteries in it.

But this one has only one large screw at the middle of the back and unscrewing it didn't seem to do much!

Had anyone seen one of these, and does the movement stilll push out through the crystal to replace the battery please?

Next time your watch gets wet don't hold it over a red hot stove eye to dry it out.

Dali would have approved

Of this thread!

I didnt, I just left it on the side of a table somewhere in Spain and it kinda slithered over