1960s Enicar Sherpa SuperDive (Ref. 145/006)

Patented in 1956 by Ervin Piquerez SA (EPSA), the SuperCompressor case possessed a unique sealing system that set it apart from other dive watch cases of the day. When exposed to higher water pressure, the spring-loaded case back of the SuperCompressor case sealed even tighter. Another innovation with the SuperCompressor was its a three-pronged approach to securing the bezel. Whereas the bezels of most dive watches of the period rotated in both directions--running the risk of the diver miscalculating the amount of air left in his tank--the bezel of the SuperCompressor included an internal timing ring, only rotated in one direction, and locked.  The diver must rotate the bezel with an additional crown, giving the SuperCompressor case its distinctive twin crown appearance. While not the best innovation in practice (due to the difficulty of manipulating a crown with diving gloves), the SuperCompressor case gained popularity. Dozens of other brands released dive watches with SuperCompressor cases, the most notable being Jaeger-LeCoultre, Enicar, Universal Genève, and IWC. 

With a long history of versatile sports watches, the Enicar company made wide use of the supercompressor technology producing many different references and iterations of this style of diving watch. Impressive enough for military implementation the Polish Navy issued their soldiers Enicar SuperDives as the registered diving watch of their military. The SuperDive is adorned by collectors for its high visibility stylistic design. With large, trapezoidal, tritium markers and cigarette style hour and minute hands featuring a lollipop sweep seconds hand.