TechnoMarine Watch Sea Manta Mens TM-218021. TechnoMarine watches holding true to the founding mission of delivering exceptional time with the attributes of freedom and elegance, TechnoMarine watches constructs each watch with the highest of standards. Technical skill matched with distinction in design imparts creations of true significance. From initial design inspiration to construction to final execution, all Technomarine models are carefully engineered utilising only the finest materials. Due to this distinguished craftsmanship, TechnoMarine has earned international recognition reflective of the brands detailed attention to delivering excellence.