G-Shock dw-5030c-1jr User Manual
Page 3
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Operation Guide 3229/3421
E-20
Illumination: EL (electro-luminescent) backlight
Battery: One lithium battery (Type: CR2016)
Approximately 2 years on type CR2016 (Assuming 3.5 seconds light
operation and 20 seconds alarm operation per day)
Note: Frequent use of the backlight shortens the battery life noted above.
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