This is a vintage Mulco Escafandra Super-Compressor Diver two crowns watch. Stainless steel screw back case measures 36mm. excluding crowns, it is in great shape, showing minor wear and free of any significant dents or dings. Black original signed dial is stunning. The original tritium on the dial and hands no longer glows after being exposed to bright light. The outer case back is engraved "STAINLESS STEEL 21 JEWELS ANTIMAGNETIC SWISS MADE AUTOMATIC INCABLOC WATERPROOF SUPER" with an engraved fish and "ESCAFANDRA" followed by "250-204" in the center. The inner case back is engraved swiss made, Super Compressor, Brevet 317537 and 337462. Mulco S.A. made in Switzerland and "9-62." The 21 jewels "MULCO" stamped automatic movement is in excellent condition and appears untouched. It keeps accurate time. The top crown controls the inner bezel. Both crowns are the original cross hatched crowns and both are sharply threaded and non-dented.