I have a G-Shock GW-6900BC which is behaving oddly. I setup the daylight savings time to Auto and all of the updates have been ok. When daylight savings time ended last month, the watch didn't automatically update so I set the time manually back 1 hour. Now, whenever the watch updates it advances the time by 1 hour, back to daylight savings time. I cured the problem by turning off the auto update function and now the watch behaves as it should. Did I make a mistake by setting the watch back manually instead of letting the watch do it? The time updates for this watch have been fairly consistent, although it sometimes goes 10 days without updating, other times it's daily.