Seiko Prospex Monster Automatic Diver's Watch.
 
This Prospex Divers is a wonderful timepiece. It is an automatic movement with manual windering capacity which is great for optimal diving usage. Caliber 4R36. It has a unidirectional rotating bezel in space grey. Which compliments the gradient blue face. It also had day and date display at 3 o'clock. Additionally, this product conforms to the divers watch standard "ISO6425:2018".