Lot Essay
According to the Archives of Montres Longines Francillon SA, the present calibre 30Z movement was manufactured in 1950.
The present chronometer movement calibre 30Z is one of Longines' milestone products: in 1950 the firm took a decisive step in its commitment to high precision by starting the production of movements designed specifically for timing operations by manufacturing 300 examples of the 30Z, a 30 mm. calibre destined exclusively for observatory competitions.
The present chronometer movement calibre 30Z is one of Longines' milestone products: in 1950 the firm took a decisive step in its commitment to high precision by starting the production of movements designed specifically for timing operations by manufacturing 300 examples of the 30Z, a 30 mm. calibre destined exclusively for observatory competitions.