A vibrating warning machine is such a “ No Duh ” characteristic that I ca n’t consider no one else has done it in a mass grocery store watch . The Casio GW-400J has all kind of secure stuff and nonsense including Waveceptor atomic time synchronizing , solar electric cell , tide charts , and moon phase angle indicators . Generally , this is watch for swimmin ’ and surfin ’ , but the vibrate function would work great for knowin ’ when to clock out at the program library , I hazard .
Priced at about $ 200 and only available overseas , the GW-400J should be hitting our shores very soon .
Review of the Casio G - Shock GW-400J Vibrating Watch[WatchReport ]

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