There is a rare model which is called ref. G384. Whatchpool24 (Franz Roman) have such a model for sale at the Moment, which IMHO looks fully original (except crown). The original dial has " - Swiss Made - T" at the Botton, same as the a384, a385, a386 and G381. Your example has "T - Swiss Made - T". That means that at least the dial is not original to this Ref. IMO the dial also looks very strange (printing, lume colour).
Hands und subdial hands (at least hour recorder) also look off. Do you have pictures from the caseback (outside, inside) and movement ? What is the serial number ?
I would stay away.