Anyone ID this gauge?

[Kaneda13]

I picked up this gauge second hand as a main SPG, and I've really taken a liking to it. It's retro-ish, feels solid in my hand. I would like to pick up another one of future use, but googling Z90 gauge scuba isn't finding me anything. Anyone familiar with it, or might be able to link me to a model number (EXTRA points if you find one like it for sale!)

 

[Kupu]

Z90 brand goes back to the 80's, so the best place to watch would be the auction sites etc. Most of the equipment they sold rebranded and also available under other names.
I have had a couple of the gauges shown in your photo and agree they are nice. Don't think I have any more just like that sitting around but will have a look.

Here is a similar version branded SAS.