Large, heavy, sturdy, incredibly protected and superlatively engineered Super-Compressor, Swiss Made professional diving watch from 1969. This is one of our most valuable pieces in our collection. Below the extra thick mineral crystal is an immaculate matte black dial with strongly glowing lume block indices, framed by a ‘mosaic’ pattern internal bezel which can be operated with the extra winding crown. An ETA 2417 calibre automatic movement powers this watch, and with servicing runs perfectly, like new!