CASIO QW1373 (SM540)
Manual de Servicio

1. SPECIFICATIONS
Module (Movement No.) Display system Accuracy setting Accuracy Number of jewels Time correction Battery type Battery life Current consumption Functions QW-1373 Three hands & EL backlight Unadjustable ±20sec./month 0 Crown type SR-626W Approx. 2 years 0.8 µA maximum Electro-luminescent backlight

Notes: Conditions of battery life. � EL backlight is used 1 second per day ----------------------------- 3 years � EL backlight is used 3 seconds per day --------------------------- 2 years

2. OPERATION CHART: MODULE QW-1373

TO SET TIME
1) Pull the crown out when the second hand is at 12 o�clock position and the second hand stops. 2) Turn the hands clockwise and put the watch four or five minutes forward. Then back them out. 3) In accordance with a time signal, push the crown in.

L (Light button)

Crown

ABOUT THE BACKLIGHT
� Hold down L to illuminate the face of the watch. � The backlight of this watch employs an electroluminescent (EL) light, which loses its illuminating power after very long term use. � Frequent use of the backlight shortens the battery life.

�1�