This is the men's watch that remains unerringly accurate via updates from the world's radio clock transmitters and keeps you constantly abreast of conditions while adventuring outdoors. Providing a constant flow of reliable data while you hike, ski, cycle, or sail, its digital display combines with the analog dial to provide separate compass, altimeter, barometer, and thermometer functions while the digital display by itself provides chronograph (1/100th second accuracy), world time, 24-hour time, an 87-year calendar, and more. Ensuring precision analog timekeeping, it receives radio signals six times per day from atomic clocks located in the U.S., U.K., Germany, Japan, and China, and adjusts itself for daylight saving and when traveling between time zones. Eliminating the need to correct the time or replace batteries, a rechargeable battery stores energy collected by a solar cell in the watch's face¿a full charge will provide up to five months of use. Water-resistant down to 328'. Stainless steel case and black resin band with scratch-resistant sapphire crystal face. Watch case 2 1/4" L x 2" W x 1/2" H. (3 1/4 oz.)