looks ok to me!

Nivada Grenchen are the guys who took on Rolex for some copyright or patent issue regarding screw in crowns or some technical thing. I think they won in the US.

I may be wrong but I cana ask some dive people about it...

Val.72 movement with a nod to the Rolex Daytona on the registers. The steel ring inside the bezel screws down the crystal I believe. This feature is normally associated with monococ dive watches although many companies have used this style of case for their divers - Zenith, Squale, Jenny
Cool watch.

Whach out for the bezel if your watchmaker disassembles it for ultra sonic cleaning as I think the scale is printed on the underside of the plastic insert. I had one that shrank and the insert came out destroying the scale.

Wow! Gotta get my blog up and running as I know far too much rubbish.

later

Alistair