According to Rössler's latest publication, only 375 of this very first version (with dial "Zenith Automatic"; 01.0043.400(1) he names them) were made in 1988.
The other 415 (he calls them 01.0043.400(2)) have different dial and hands (Mercedes hour hand and Rolex look alike round hour lume markers "Zenith El Primero Automatic") and a screw down crown and were made in 1989.
View attachment 157719
Click to expand...