Vintage collectible Airflight 24h dial Gruen watch.
From a local estate.
Manual winding.
Watch winds and runs. 
The 24h dial does not turn over. (Available 510 SS donor movements are on eBay if a part is needed.)
This was will need to be serviced for optimal performance.
Width is 35 mm not including crown.
See photos for actual condition.
Stretch band.