One of the most distinguishing features of the original A3818, compared to other early El Primero watches, is its dial. Instead of the signature Zenith tri-colour chronograph sub-dials or high-contrast “panda” dials, the A3818 featured a textured blue dial – something of a rarity back in 1971. In the Revival series, the satin-brushed finish and petrol blue tone of the dial have been preserved, as have the “pyramid” seconds track and alternating grey and black colours on the sub-dial rings. Giving a uniquely modern twist on this historical reference and turning up its legibility in the dark, the pyramid track, tachymeter scale, logo and text are done in Super-LumiNova®. On the reverse side of the case is another welcome evolution from the original A3818, with a sapphire display back exposing the El Primero calibre.