WARNING: Button/coin batteries can cause severe injuries or even death when swallowed. Keep batteries out of reach of children. If you suspect a child has swallowed or inserted a button/coin battery, seek medical attention immediately. Specifications
Basic Information
Case Dimensions (L × W × H): 48.9 × 42.8 × 13.5 mm
Weight: 74 g
Case and Bezel Materials:
Stainless Steel/Bio-based Resin
Strap:
Bio-based Resin Strap
Construction:
Shock Resistance
Water Resistance:
200 meters
Time Adjustment:
Wireless Controlled Watch; Multi-band 6
Power Supply and Battery Life:
Tough Solar
Exterior:
Crystal:
Mineral Glass
Case Back:
Screw-down Case Back
Surface Finish:
Diamond-like Carbon Coating
Compatible Strap Sizes:
145 to 205 mm
Watch Functions
World Time:
5 World Time Zones
31 Time Zones (48 Cities + Coordinated Universal Time),
Daylight Saving Time On/Off, City of Residence/World Time City Switching
Stopwatch:
1/100 Second Stopwatch
Measurement Limits:
00'00'00~59'59'99 (First 60 seconds) (Minutes)

1:00'00~23:59'59 (60 minutes later)
Measurement Unit:

1/100 second (first 60 minutes)

1 second (60 minutes later)
Measurement Mode: Elapsed Time, Segmented Time, First and Second Place Time
Timer Function

Countdown Timer
Measurement Unit: 1 second
Countdown Range: 24 hours
Countdown Start Time Setting Range: 1 second to 24 hours (in increments of 1 second, 1 minute, and 1 hour)
Alarm/Hourly Alarm

5 Daily Alarms (1 Intermittent Alarm)
Hourly Alarm
Lighting Effects

LED Backlight (Super Light Source)
Fully Automatic LED Light, Selectable Lighting Time (1.5 seconds or 3 seconds), Peripheral Light
Lighting Color

LED: White
Calendar

Fully Automatic Calendar (up to 2099) (Year)

Silent Function

Button Operation: Sound On/Off

Energy Saving Function

Power Saving (The screen will turn blank to save power when the watch is in the dark)

Battery Display/Alarm

Battery Level Indicator
Running Time

Approximate Battery Life:

Rechargeable battery life: 10 months (based on normal use after charging and no exposure to light)

Rechargeable battery life: 22 months (based on fully charged power-saving mode and placement in complete darkness)

Accuracy

Accuracy: ±15 seconds per month

Other Functions

12/24 Hour Format
Date/Month Display Interchange
Day of the Week Display (can be selected to display the day of the week in six languages)

General Timekeeping Modes:
Hour, Minute, Second, PM, Month, Date, Day

Time Adjustment Details

Time Calibration Signal Reception
Maximum six automatic signal receptions per day (subsequent automatic receptions will not occur after one successful reception)
*China calibration signal 5 times per day Next time
Manual reception
Latest signal reception result
Time calibration signal
Transmitter name: DCF77 (Mainflingen, Germany)
Frequency: 77.5 kHz
Transmitter name: MSF (Anthorn, UK)
Frequency: 60.0 kHz
Transmitter name: WWVB (Fort Collins, USA)
Frequency: 60.0 kHz
Transmitter name: JJY (Fukushima, Fukuoka/Saga, Japan)
Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
Transmitter name: BPC (Shangqiu, Henan Province, China)
Frequency: 68.5 kHz