Seiko Prospex: a lively story that surpasses even the wildest expectations of athletes and adventurers. Unique diver watches, dynamic pilot watches and specimens with rotating compass ring. No wish remains unanswered. Clocks with professional specifications to discover the world your way. On land, at sea and in the air. Experience Seiko technology.
A mechanical watch automatically recharges itself when worn by converting the wearer's arm and wrist movements into energy. Movement of the watch causes the main spring of the watch to excite. This spring is the source of energy.
The 6R15 Seiko caliber with date indication is a mechanical caliber. The watch automatically recharges itself during wear by converting the wearer's arm and wrist movements into energy. Movement of the watch causes the main spring of the watch to be wound. This spring is the source of energy. Hand-winding is also possible. When fully charged, the watch has an energy reserve of approx. 50 hours. The ticking number of this machine is 21,600 per hour and the watch has 23 jewels. The 6R calibre is manufactured entirely in-house and consists of 168 parts.