[問題] 電波&GPS的實用性
最近想到一個問題
以G-Shock來說,精度:平均月差±15秒
Casio的石英錶的話約±20秒
無論是電波校時還是GPS,有必要"每天"在那在乎有沒有收到電波或是GPS訊號嗎?
很不準的機械錶可以自動校時還比較實際
或者是人動電能放太久停掉後再啟動自動追時並校正還比較有用吧?
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※ 編輯: powerjr (124.218.39.129), 09/16/2016 15:35:44
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