Philip Stein Signature Large Black Leather Strap Dual Time Watch 2-BK-CSTB The Philip Stein Natural Frequency Technology is delivered to wearers through a metal disk inside the watch that was infused with key frequencies in a proprietary process. When worn, the watch exposes frequencies to the biofield - which is the master energy field that regulates the body's functions - and informs the body to relax and become more resistant to stress. Studies have shown, better sleep, less stress, clearer focus and better concentration, for wearers of Philip Stein watches. Brushed stainless steel case (32 mm x 50 mm, 11 mm thick), Screw-in case-back with two sapphire crystal windows revealing the Natural Frequency Technology chips Polished stainless steel bezel, Black dial with line guilloche center and carbon fiber frame, Silver-tone luminescent hands Silver-tone indices and Arabic numerals, Bottom dial displays an additional time zone, Sapphire coated mineral crystal Two Swiss quartz movements, Water resistant to 3 ATM/30 meters/99 feet, Black calfskin leather strap with contrast stitching, Pin buckle You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!