This is a great Chronograph that uses the famous Valjoux 7734 Cal. Movement. found on Vintage Brietlings; Heuers; Modias; Yema; Dugena etc..

This Aero Nuchatel Chronograph has a great blue dial which is in perfect condition.  It has red markers on the batons that match the sweeping second hand.  

The Chronograph works perfectly and the date is shown at 6 O'clock.  The chunky square case is of the period and was made famous by the Heuer Monaco worn by Steve McQueen.

As you'd expect from this movement the watch runs very well and is in great condition overall.