The Seiko Prospex Automatic Divers Men's Watch Save The Ocean 2021 King Samurai Special Edition, model SRPF79K. This Manta Ray Series timepiece boasts a striking blue face encased in stainless steel, complemented by a blue silicone strap, and safeguarded by sapphire glass. The SRPF79K1 is equipped with a screw lock crown and a special edition case back.Powered by the 4R35 movement, this watch offers additional features including a daily tolerance of 45 / -35 seconds at normal temperatures, with an approximate 41-hour power reserve, supporting both manual and self-winding functions. As a 200m dive watch, the SRPF79K features a case diameter of 43.8mm and an approximate weight of 130gm, along with a screw lock crown and a ceramic uni-directional rotating bezel.While the manta-ray dial may not suit everyone's taste, the combination of the strap and blue dial on this model provides a subtler aesthetic. The inclusion of sapphire glass and a ceramic bezel further enhances the watch's comprehensive features.- Caliber No. 4R35- Automatic Movement Powered by the movement of the wearer - 41 Hours Power Reserve- 43.8mm Case Size - 12.8mm Case Thickness - 127g Weight - Stainless Steel Case - Silicone Band - Sapphire Glass - Screw Down Crown - Rotating Bezel: Ceramic One Way