Casio ES-1310 Watch
(630-5246)                 Battery                    Faxback Doc. # 19143

HOW TO REPLACE THE BATTERY

CAUTION:  Battery replacement should not be attempted without use of the 
          correct tools. 

1.  Check the type of back cover. 

Screw-in   Screwed type       Snap-on       Snap-on         Snap-on type 
type                          type (A)      type (B)        type (C) 

2.  Removing the back cover 

    Place the watch on soft material, like buckskin, and hold it firmly. 

With the Adjust-   Using a       Insert Opener A  Fit Case   Insert Opener 
able case Opener,  screwdriver,  in the recess    opener B   B into a gap 
turn the back      remove the    and move from    into the   between the 
cover counter-     screws from   side to make a   notch and  two hooks, 
clockwise.         the back      gap between the  pry open   and pry open 
                   cover.        cover and the    the back   the back 
                                 case.  Then use  cover.     cover. 
                                 the Opener to                              
                                 pry off the      Case       Avoid insert- 
                                 Cover.           Opener B   ing the case 
                                                             opener at the 
                                 Case Opener A               hook posi- 
                                                             tion or the 
                                                             case may be 
                                                             damaged. 

                                                             Case Opener B 

BATTERY LIFE:  Battery life is calculated from when the battery is loaded 
               at the factory.  At first sign of power fade (dim display), 
               have battery replaced at dealer or CASIO distributor. 

3.  Replacing the battery

Screw type:  Using a screwdriver, remove screw (s) from the battery 
             holder. 

Hook Type:   Use a thin flat blade jeweler's screwdriver to pull hook on 
             one side of the battery holder and remove the holder.  Then 
             replace dead battery (s) and attach the battery holder. 

4.  AC (AC CLEAR)

Touch the AC contact and the battery (+) side with metallic tweezers. 
Contact should be about 2 seconds. 

CAUTION:  Avoid touching the contact negative (-) of the battery. 

          Never hold the contacts with metallic tweezers. 

          Work carefully so that the components inside the watch do not 
          pop up. 

IMPORTANT

(a)  Contacting AC (ALL CLEAR) is necessary, when a new battery has been 
     put in, because the memories/counters may cause erratic displays. 

(b)  On some models, pushing the light button will turn on the display. 

5.  Fitting the back cover 

Using the Adjust-  Tighten the screws,   Place the watch   Hold the watch 
able Case Opener,  using a screwdriver.  on a hand press   horizontally 
tighten the back                         and push the      and snap-fit 
cover.                                   back cover in     the back cover. 
                                         gently.