Seiko Premier Perpetual Calendar Quartz SNQ159 SNQ159P1 SNQ159P 100M Men’s Watch

Amazing engineering worth your every penny! You’ll only have to re-set the calendar if the battery has completely died. The watch, however; stores enough power to keep working for the time you’d usually take to remove and replace the battery if you keep a spare one handy. You’ll never have to set the perpetual calendar again if you don’t allow the battery to die out completely.