From the Prospex CollectionModern re-imagining of Seiko’s first sport watch, introduced in 1959Manual and automatic winding capabilities21,600 vibrations per hourPower reserve: approximately 70 hours24 jewelsRotating inner compass bezelGreen dial with sunray finish and gold accentsMagnified date windowLumiBrite hands and markersSapphire crystal with anti-reflective coating on the inner surfaceScrewdown crown and see-through casebackCase diameter: 39.5mmStainless steel caseBrown leather strapTri-fold push button release claspWater-resistant to 20 bar, 200 meters (660 feet)Caliber 6R35