1.30 meters livingDial thickness: 16mm6. Stopwatch timing11.L=LIGHT M=MODE S=START R=RESET 12.A : this electronic watches for ordinary , can wash, splash and rain. But you can't take a bath, swim or dive, please wear it according to the scene.4. Show calendar is your date more clearly9.Button light: press the L button, the lights will be lit. Note, the long-term use of on the battery consumption is relatively large. The battery model of this type of electronic meter is CR2032.2.Digital 12/24 hour display1X Watch8.Stopwatch method of use: in the normal display state press the M button 1 times to enter stopwatch function, then press the S button to start the stopwatch, press a S button, the stopwatch stopped, digital display. Press the R key to clear the number. Press the M button to to normal display time.7.Set the whole time setting: hold down the R key, press the M key, and select the full point timekeeping function to turn on / off. When the whole clock is turned on, the R key will be displayed all week.10.Please tear off the screen protection film before use, otherwise it seems not clear.Case material: Resin3.LED luminous display mirrorStrap length: 253mm (including case)4.Time setting: when normal display, press M button 3 times to enter the time adjustment state. Seconds flashing, and then press the S key, proof seconds, press R button, sub flashing, press the S key to sub. The same method, press the R button to adjust the hour, date, month, week status, after flashing in the S button adjustment, after all adjustments, in the M button 1 times, to the normal display state.3.12/24 hour status settings: normal display, press the M button 3 times, enter the time adjustment status, and then press the R button 2 times into the hour to adjust the status, and then press the S button to adjust the 12/24 hour system. After setting up, then press M button to to normal time for 1