Features stainless steel case with a domed bezel.
Silver dial with concentric circle. Orange Arabic numerals. 
There are versions with the smooth bezel and those with an engine turned bezel, as well as some versions with a White Gold bezel. 
Has a polished domed bezel.
It is 34mm in diameter and comes with an Oyster bracelet by default.
The Air-King does not have a Date.
In the 1970s, the Air-King was offered with a date (scarce!) and in gold & steel combinations. 
Those two variations likely ceased production since they are redundant next to the Date and Oyster Perpetual models.
This is an excellent mid-size Rolex, equally at home on a lady's wrist.
Automatic movement Caliber 3130 with a 42 hour power reserve.
COSC certified chronometer 
Various dial color options as well as hour marker variations were offered, so that some have Arabic or Roman numerals or a combination with stick index markers - even different colors on the markers. 
All-in-all this remains a Rolex, much beloved & always popular!
Water resistant to 100 meters / 330 feet