Casio Watch G-SHOCK Men's GST-S310D-1A [Item]

[Size] (approx.) H43 x W47 x D16mm (excluding lugs and crown), weight (approx.) 184g, arm circumference maximum (approx.) 21cm, minimum (approx.) 12.5cm [Material] Stainless steel, resin (case), stainless steel (belt) [Specifications] Quartz, 20 ATM water resistant, chronograph, calendar (month, day, day of the week), world time, 24 hour meter, impact resistance, LED light, remaining capacity indicator, color: black (dial), silver (belt) , silver (index) [Accessories] BOX, warranty, instruction manual Case/bezel material: resin/stainless steel Band/stainless steel Impact resistance mineral glass 200M waterproof LED light LED light for face (fully automatic LED light, super illuminator, selectable lighting time (1.5 seconds or 3 seconds), afterglow) LED backlight for digital displays (fully automatic LED light, super illuminator, selectable lighting time (1.5 seconds or 3 seconds), afterglow) Solar power generation (solar) world time 31 time zones (48 cities + Coordinated Universal Time), daylight saving time on/off, home city/world time city swapping 1/100 second stopwatch Measurement capacity: 59'59.99'' Measurement mode: elapsed time, split time, 1st-2nd place time countdown timer Measurement unit: 1 second Countdown range: 100 minutes Countdown start time setting range: 1 second to 100 minutes (in 1 second increments, 1 minute increments) 5 daily alarms time signal Remaining power indicator Power Saving (emptying the display when left in the dark will save power) Fully automatic calendar (until 2099) 12/24 hour format Button operation sound on/off Timekeeping Analog: 2 hands (hours, minutes (hands move every 20 seconds)) Digital: hours, minutes, seconds, pm, month, day, date Accuracy: ±15 seconds per month Operating time: 8 months on rechargeable battery (operation period in normal use without exposure to light after charging) 19 months on rechargeable battery (operation period when stored in the dark with power saving turned on after full charge) Case size: 55.9 x 49.3 x 15.3mm Total weight: 183g This is not a radio clock.