Seiko Prospex solar SNJ029P1 watch features a uni-directional rotating bezel that prevents accidental rotation. The crown has screw-down function to prevent it from being pulled and to keep it sealed in water. The watch has a black resin case surround and stainless steel bezel with black dial and chunky glow in the dark hands and markers. SNJ029P1 also features an LCD display function with dual time, it also has an Hardlex crystal lens giving it great durability. This watch is Solar Powered by any source of light, the photo-voltaic solar cell can charge the watch after only a few minutes any light source. When fully charged, the power reserve can last up to 10 months. This watch also has an alarm function, chronograph (100 minutes 1/100th increments) and khaki brown silicone strap. Comes supplied with official Seiko watch packaging.