SPB255 Leather Strap while the screwdown see-through caseback

while the screwdown see-through caseback provides a view of the caliber 6R64 29-jewel automatic movement with manual winding capability

and offers a black uni-directional rotating elapsed timing bezel in scratch-resistant ceramic

Inspired by motor sports

the silver dial

Upgrading an iconic style with a ceramic bezel and a sapphire crystal with anti-reflective coating on the inner surface

SPB255 Leather Strap while the screwdown see-through casebackProspex Black Series Limited Edition. 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. From the dramatic Black Series, this distinctive Limited