Specifications: 
Inorganic Glass 
Shock resistant construction (shock resist) 
Water resistant to 20 ATM. 
Case and bezel material: Resin 
Resin Band 
Tough Solar (Solar Charging System) 
Radio reception function: Automatic reception (up to 6 times per day) (Up to 5 times per day) / Manual reception. 
(Japan) Reception Radio Wave: JJY, Frequency: 40 kHz/60 kHz (Fukushima / Kyushu station compatible) 
(North American Regions) Reception Radio: WWVB, Frequency: 60 kHz 
(European Regions) Reception Wave: MSF/DCF77, Frequency: 60kHz/77.5kHz 
(China) Reception Radio: BPC, Frequency: 68.5kHz 
*Set your home time setting to a city that can receive a station that matches the city. Furthermore, the time difference will be set based on the selected city. 
Mobile link function (works with BluetoothR communication with compatible mobile phones) 
5 World Time: 39 cities around the world (39 time zones, with automatic daylight saving set) + UTC (Coordinated Universal Time) display time and home time replacement function. 
Stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour), 24 hour counter, with split 
Timer (set unit: 1 second, maximum set to 24 hours, measured in 1 second increments) 
5 time alarms (with snooze function for 1 only), Time signal. 
Battery charge warning function. 
Power saving function (after a certain period of time in the dark, the display will be turned off and saving energy) 
Full auto-calendar 
Switch between 12 and 24 hour displays. 
Switch sound between on/off 
Date display (month/date display replacement) 
Day of the week (English, West, French, Germany, I, and Dew) 
LED backlight (full auto light, super illuminator, fade in fade, afterglow function, afterglow time switch (2 seconds/4 seconds) 
Operating time from full charge without solar power 
When using functions: Approx. 10 months. 
When in power saving state: about 22 months. 
Home time city (city with reception function) / Reception radio wave 
Tokyo/Japan standard radio waves JJY40, JJY60. 
Los Angeles, Denver, Chicago, New York, Halifax/USA Standard Radio WWVB 
London, Paris, Athens/British standard radio wave MSF / German standard signal DCF77 
Hong Kong/China Standard Radio BPC 
When radio waves are not received or connected with a smartphone, it will work with regular quartz accuracy (average monthly difference of ±15 seconds). 
LED: White 
Size/Weight: 
Case size (H x W x D): 1.9 x 1.7 x 0.5 inches (48.9 x 42.8 x 13.4 mm). 
Weight: 1.9 oz (53 g)