Seiko Watch SSK003K1

The 4R34 Seiko calibre with date display and a 24-hour hand is a mechanical calibre. The watch automatically recharges itself while being worn by converting the wearer's arm and wrist movements into energy. Movement of the watch causes the watch's main spring to be wound up. This spring is the energy source. Manual winding of the watch is also possible. When fully charged, the watch has a power reserve of about 41 hours. The tick rate of this automatic is 21,600 per hour and the watch has 24 jewels.