SEIKO PROSPEX U.S. SPECIAL EDITION SPB421 45’mm The brushed bezel includes a

The brushed bezel includes a blackened tachymeter scale

and provides manual winding capability

with a power reserve of approximately 50 hours

The caliber 8L35 26-jewel automatic movement

Screwdown see-through caseback

SEIKO PROSPEX U.S. SPECIAL EDITION SPB421 45’mm The brushed bezel includes aProspex U. S. Special 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, leading the way with new advances, while recreating and reinterpreting landmark achievements. Inspired by Seikos 1965 landmark first