The design and the main characteristics of the new Radiomir 1940 3 Days Automatic came directly from the 1940s but their modernity is such that the watch has an absolutely contemporary style. For the first time in a watch in Radiomir 1940 collection, the dial of the new Radiomir 1940 3 Days Automatic is offered in white. Its graphic design maximises the dial’s clarity and legibility, with the large black figures corresponding to the hour markers and the small seconds dial at nine o’clock, a characteristic of Panerai watches of the 1940s. On the case back is a round window with a sapphire crystal through which the in-house automatic P.4000 can be admired. The structure of the calibre is particularly rugged and reliable, with a wide brushed-finish plate covering the greater part of the mechanism, and the full balance bridge with twin supports which carries the balance, oscillating at a frequency of 28,800 vibrations per hour. The most fascinating element for the enthusiasts of high quality watchmaking is certainly the off-centred oscillating weight, set within the movement and thus making it possible for the calibre to be only 3.95 mm thick. Made of tungsten, the rotor oscillates in both directions and it is connected to the two spring barrels in series which store a power reserve of up to three days.