The power comes directly from the hour-and-cannon pinion of the primary gear-train, so increments of 1/4 or 1/8 of a second are visible now. However, if you are getting your first Casio Edifice World Timer, start with the the Kinetic Direct Drive (caliber 5D44) or the Yachting Timer (caliber 7T84), the latter’s pre-set yachting counter timer, auto-start function (of the chronograph), the free-set countdown timer, the two alarms and split time measurement features shall knock you off!.
http://myfirstblog.org/seikosporturawatch/2014/08/22/advanced-innovation-and-stylish-look-of-seiko-velatura-watches/
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