This timepiece is a magnificent artifact from the 1970s, a time when Cyma was part of the prestigious Synchron group alongside brands like Doxa and Borel. The reference is defined by its substantial "TV-style" or tonneau stainless steel case and a breathtaking gradient blue dial that shifts beautifully in the light, providing a depth that modern watches struggle to replicate. It is powered by a high-grade Synchron automatic movement, engineered during the peak of mechanical refinement to provide uncompromising accuracy and the robust reliability required for a watch bearing the "Navystar" name.

The architecture is quintessentially retro-futuristic, utilizing a massive brushed steel case with polished bevels that create a commanding presence on the wrist. The dial is a work of industrial art, featuring chunky, hand-applied baton indices and a specialized handset designed for maximum legibility against the deep blue background. Flipping the watch over reveals the iconic Synchron "Tri-Spoke" logo on the caseback, definitively confirming its authentic Swiss heritage and its connection to one of the most innovative periods in horology. This is an essential acquisition for an elite collector who appreciates 1970s industrial design, the mechanical soul of a Swiss automatic heart, and the bold, heavy-metal charisma of a vintage Cyma.