Magnetic resistance 4,800A/m. Screwdown caseback. Caliber 8X22. Black Ceramic Bezel. Titanium Case with rose gold coating Caliber 8X22 is a notable advancement in Seiko’s GPS Solar technology. The case is
Case – Case Material: Stainless Steel (polished) – Case Shape: Round – Case Colour: Silver – Bezel made of: Stainless Steel (polished) – Crystal: Sapphire crystal – Back: Srewed-in back