Longines Ultrachron manufacture in-house, high speed chronometer movement, round steel case with a buckle closing steel bracelet

This watch was made in 1973 though this movement and Ultrachron product was launched in 1969. So this piece is almost 50 years old

This is a very special piece as it’s got the finest in-house manufacture movement which is a high speed chronometer, ( started with caliber 431 in 1969 at 36000 beats, to this one which is 6651 at 28,800 beats in 1973) a amazing blue dial and a technically and aesthetically high quality bracelet with a longines insignia buckle reminiscent of 70’s style. The bracelet has been professionally cleaned the case is in its original condition

Based in St. imier near La Chaux Fonds and Le Locle, the heart of Swiss watch manufacture, Longines had the distinction of being the world finest watch

Among 70’s watches, Longines brand stands out as the premier Swiss watch manufacturer for over 100 years. 

The watch is functionally in good condition with slight scratches on the case & bracelet