Re-edition of the historic Seiko diving model from 1968

CAL. 6R15

Professional diving watch. Self-winding movement 3 spheres / date - Frequency 21,600 vibrations / hour - 23 jewels - Manual winding option - Power reserve of over 50 hours - Stainless steel case and bracelet with scratch-resistant coating - Screw-down crown - Unidirectional rotating bezel with IP treatment black - Indexes and spheres with Lumibrite.