SPB321 slug_ASTRONTI12 this creation inherits the layout

this creation inherits the layout of the original

this dynamic timepiece is powered by a 24-jewel movement that beats at a frequency of 21

screwdown see-through caseback and 24-jewel automatic movement

and a screwdown see-through caseback for a view of classic timekeeping in action

SPB321 slug_ASTRONTI12 this creation inherits the layoutProspex Automatic Diver's Watch. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with re creations and re interpretations of landmark achievements. Based on an iconic Seiko design, with upgraded materials, this