SPB321 slug_ASTRONTI12 Part of a special group

Part of a special group of limited editions commemorating this pivotal moment

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

its gradated deep blue dial features a pressed pattern reminiscent of the light reflected by a classic cocktail glass

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

this creation inherits the layout of the original

SPB321 slug_ASTRONTI12 Part of a special groupProspex 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