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The backlight duration adjustment is intended as a power-saving measure for the battery -- which is why this feature is only available on certain non-solar G-Shocks. Tough Solar models, such as the GW-9000 Mudman and the G-9200 Riseman don't have it since their batteries are recharged with the slightest exposure to light anyway.

When you press the EL button the light turns on for approximately 1.5 seconds before going back to dark. That's the afterglow.

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14y ago

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