Prospex Seiko Watchmaking 110th Anniversary Limited Edition Limited Edition of 5,000 (3,212/5,000) Production serial number engraved on caseback Prospex Automatic Diver Automatic with manual winding capability Gray uni-directional rotating elapsed timing bezel Silver dial with three-dimensional pressed pattern evoking glaciers Date calendar LumiBrite hands and markers Screwdown crown and caseback Compact tri-fold push button release clasp with secure lock and extender Packaged in a Limited Edition collectors' box Re-interpretation of an iconic cushion-shape case design with a thinner, sleeker profile To mark 110 years of watchmaking excellence, Seiko is highlighting its continuous dedication to evolving technology, as well as diversity, equality and the sustainable manufacturing necessary to meet environmental challenges A portion of the proceeds supports marine conservation as part of the Seiko "Save the Ocean" campaign