Invented in 1986, the TESLAR technology was designed to emit a unique signal that strengthens the bodys own electromagnetic energy field and helps reinforce the bodys energy field to better resist the potential negative effects of external, low-energy electromagnetic fields (EMF) given off by cell-phone systems, computers and many other electronic devices. As a result of the TESLAR effect, past wearers have experienced : deeper, more restful sleep; more calm and less tension; improved concentration; increased levels of energy; an overall improvement in well-being. Stainless steel case, 2 Swiss quartz movements, White dial, Arabic numerals, Luminous hands, Gun-metal color treatment on crystal, Scratch resistant, sapphire-coated mineral crystal, Stainless steel diamond bezel, Full-cut diamonds, 0.72 carat total weight, Black ostrich strap, pin buckle, 2 time zone displays, Teslar quantum technology, Water resistance : 30 meters/100 feet, Case dimensions : 42mm x 27mm, 9.5 mm thick, Strap dimensions : 18mm wide, 8 inches long