Originally Posted by
RAT 5
If I remember correctly. from another airline, there were B733 early versions that had needle & dials; and then later versions had EFIS. I believe SWA might have had something to do with that; for a while. i.e. the needle & dials steam driven 733 looked similar to 732.
For their early EFIS equipped 737s Southwest had a digital display mimicking the round dial layout. Later they switched to the more normal "PFD" style.