Prospex U.S. Special Edition SPB421 contact_us The modified model has a

The modified model has a rounded sapphire crystal that extends all the way to the edge and a curved case blending with the curved crystal edge

Hand set with 297 brilliant-cut diamonds (2

The watch is paired with a rubber strap and stainless steel clasp

It is powered by the Calibre 403 automatic movement with a 5-day power reserve and small seconds

The ProPilot X Calibre 400 in blue features a 39mm stainless steel case and titanium bracelet

Prospex U.S. Special Edition SPB421 contact_us The modified model has 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 re creating and re interpreting landmark achievements. Inspired by Seikos 1965 landmark first