Seiko Prospex Sumo SPB101 Automatic Diver Black Dial featured A special G-SHOCK app

A special G-SHOCK app

Introducing the GRAVITYMASTER

Navy color dial with applied silvered and light grey printed indexes

Bezel: Black uni-directional rotating elapsed timing bezel

Screwdown crown and see-through caseback

Seiko Prospex Sumo SPB101 Automatic Diver Black Dial featured A special G-SHOCK appProspex Automatic Diver Manual and automatic winding capabilities 21,600 vibrations per hour Power reserve: approximately 70 hours 24 jewels Black one way rotating elapsed timing bezel Black dial Date calendar LumiBrite hands and markers Sapphire crystal Screwdown crown and caseback Case diameter: 45. 0mm Stainless steel case and bracelet Tri fold clasp with push button release, secure lock and extender Water resistant to 200 meters (660 feet),