The Longines Heritage 1973 displays a vintage look that is true to the original model. The latter, a chronograph produced in 1973 by the brand, was fitted with a Longines mechanical chronograph movement, the 30CH. The Longines Heritage 1973 houses the L688 calibre, a column-wheel chronograph movement developed and produced by ETA exclusively for Longines.
The silvered dial of the Longines Heritage 1973 boasts a fascinating play of contrasts. At 3 and 9 o'clock, two black counters were included. The applied hour symbols are decorated with a fine black line and a dot of Super-LumiNova®. These are interposed and balanced out by a minute-circle, also of fine black lines. A blue tachometric scale surrounds the dial, adding a subtle touch of colour to the whole.
With a diameter of 40 mm, the cushion-shaped steel dial of the Longines Heritage 1973 has retained the lines and mood of the original model. The back is fitted with a transparent sapphire glass cover through which the wearer can admire the movement of the calibre as well as the blue column-wheel. This model is completed by the rounded push-pieces. The whole is mounted on a black alligator strap.