A radio clock that receives standard radio waves and automatically keeps accurate time. Equipped with a solar system so there is no need for troublesome replacements. This is a radio-controlled solar wristwatch that can be used nationwide, so it automatically adjusts the time no matter where you are, and there is no need for any troublesome time adjustment. [Specifications] Light generation (solar power) Radio wave reception function Regular reception, forced radio reception Radio wave reception radio waves: Long wave (frequency 40/60KHz), automatic tuning reception of both stations (up to 3 times a day) High precision analog display function A solar-powered radio clock. Since it is a radio-controlled watch that can be used nationwide, it is an eco-friendly and earth-friendly watch that provides accurate time no matter where you are. ■Size Case: (approx.): Height 42mm Width 36mm Thickness 13mm Arm circumference length: 210mm Weight: Approx. 47g ■Material Case: Stainless steel, band: Cowhide & PU , back cap: stainless steel & crystal glass, glass: crystal glass, dial: with 4 natural diamonds ■Specifications/Functions Move: Solar radio waves, daily life waterproof ■Others 1 year warranty Made in China