ScubaPro Stabilization Jacket - Orange

Looking for assistance in identifying the year of this Stabilization Jacket.

I received this from my folks who found it at an estate sale. It came with a manual that does not appear to match the exact jacket.

This model is lacking the ScubaPro name down the front as the one in the manual and others I've seen online. This one has the name on a detachable front pocket.

It has a "SeaQuest" inflator that can connect to the inflator hose from the reg.

It is stamped, "Mexico," indicating where it was made.

Without having mine in front of me I would say mid to late 80's. It looks almost identical to my 1987 jacket.

I got mine in '79 or '80.

Mine did not have a shoulder dump, pocket nor chest d-rings. After 1980 then.