●Band: Resin band ●Length: 145-215mm/26.1mm ●Case size: 48.5×45.4×11.9mm ●Mass: 52g ●Shock-resistant structure ●Tough solar (solar charging system) ●20 ATM waterproof function ●Mobile link function (function interlocked with compatible mobile phones via Bluetooth (R) communication) ●Hand retraction function (If the hands overlap the LCD display and are difficult to see, you can temporarily retract the hands from above the LCD display.) ●World Time: 38 cities around the world (38 time zones, automatic summer time setting function) + UTC (Coordinated Universal Time) time display, home time city switching function ●Stopwatch (1/100 second (less than 1 hour)/1 second (more than 1 hour), 24 hour meter, with lap/split) ●Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second increments) ●5 time alarms/time signal ●Battery indicator display ●Power saving function (turns off the display after a certain period of time in a dark place to save power) ●Full auto calendar ●12/24 hour display switching ●Operation sound ON/OFF switching function ●Date display (month/day display swap) ●Day of the week display (switchable between 6 languages: English, Spanish, French, German, Italian, and Russian) ●Double LED light: LED light for dial (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds)), LED backlight for LCD section (super illuminator, afterglow function, afterglow time switching (1.5 seconds)) seconds/3 seconds) ●Driving time from full charge when using the function without solar power generation: Approximately 7 months / In the power saving state: Approximately 18 months