Unidentified Gauge Help

[CaptainSpaulding]

Hello everybody,
I need help to indentify the gauge on the picture.
At first I've tought that it was a clock (we can see three needles very similar to the one on clocks), but then I've counted the radial sectors and they are 10 instead of 12.
Infact we can cleary see the '7'  on the left side, meaning that the mid-vertical position is '5'.

What instrument has tree needles like a clock but it's divided in tenths instead of twelveth?

The only one I can think of is the altimeter, but I don't think that one is an altimeter.

Any idea?
Thanks in advance.