I've been looking at descriptions on here but I can't seem to find out what the face is made of? Is it plastic, tempered glass?
GREGORY M I don't have it any longer but i beleive it was tempered glass. either way it was a very nice SPG.
KENT K Plastic, I use this as backup for air integrated computer, keep it tucked in bc pocket. It's a bit small for a primary. Nice little gauge.
THOMAS D The face is made of plastic. I have been using this as a backup to a wireless integrated computer for about 3 years now and am very happy with it.
ROBERT K I am pretty sure it is plastic. In my experience, if you muck around alot or cave dive alot, the suface starts to pick up some scratches, but is still pretty legible underwater. I think the design has plenty of strengh to avoid crushing at recreational depths, in case that is part of your concern.