Adventic. An unusual sounding name for a rather uncommon model: the first Eterna timepiece to incorporate the new Eterna proprietary calibre 3843, itself driven by an Eterna Spherodrive mechanism. This new, round self-winding movement comes on the heels of the manually-wound Calibres 3505 and 3510. The Adventic gives the time of day with subsidiary seconds, plus date and GMT time. The design is inspired to a certain extent by the Centenaire model of the 1960s, yet it is perfectly contemporary in style and spirit.