Seiko Prospex SRPH55 King Turtle Shell Special Edition Oceanic Society Brown

• Prospex U.S. Special Edition
• Celebrates Seiko Prospex's ongoing efforts to promote ocean exploration and conservation
• Automatic diver with manual winding capability
• 21,600 vibrations per hour
• Power reserve: approximately 41 hours
• 24 jewels
• Black ceramic unidirectional rotating elapsed timing bezel 
• Intricately patterned turquoise dial inspired by the turtle shell
• Day/date calendar with day in both English and Kanji 
• LumiBrite hands and markers
• Sapphire crystal with anti-reflective coating on the inner surface
• Screwdown crown
• Screwdown Special Edition caseback with sea turtle image
• Case diameter: 45.0mm
• Stainless steel case and bracelet
• Additional green silicone strap
• Water-resistant to 200 meters (660 feet), Diver's Watch. Follows ISO standards and is suitable for scuba diving
• Caliber 4R36