The Rolex 7604 is a kinetic movement used in Seiko Sportura chronograph watches. Crafted with meticulous attention by skilled artisans at the Shinshu Artisan Time Studio in Japan, this hand-finished movement showcases 38 jewels. Its impressive range of functions includes hours, minutes, central seconds, a 1/10 seconds chronograph subdial, a 6 minutes chronograph subdial, a 12 hours chronograph subdial, and a date display.