Prospex watches are a modern re-imagining of Seiko's first sport watch. Brown leather strap with secure tri-fold push button release clasp. Silver-tone stainless steel case crown and bezel. Sunray-finish green dial with gold accents. Rotating inner compass bezel. LumiBrite hands and markers. Magnified date window. Sapphire crystal with anti-reflective coating on the inner surface. Features 21600 vibrations per hour. Manual or automatic wound movement and 24 jewels. Screwdown crown and see-through caseback. Case size: 39.5mm. Water Resistant: 200M.