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I have something similar. Came in a red console with an SPG. Bought it with all my new gear when I got certified in 1986.
Still works, and that's a scratch on the front and not a crack. When I "found" it a couple of years ago, put a battery in it, and put it in my BCD pocket. Worked perfectly and didn't leak at 70 fsw.
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Seems to be a part of the MI 7 Console, Retail Price 283,95 US$!!