SPB317 6R15 topped with a scratch-resistant sapphire

topped with a scratch-resistant sapphire crystal with anti-reflective coating on the inner surface

one a 24-hour indicator

in two-tone silver and black with super-hard coating for added endurance

while the inner rotating compass bezel makes it ideal for hiking and outdoor activities

SPB317 6R15 topped with a scratch-resistant sapphireProspex 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. With the thinnest case to date of any Seiko automatic diver's watch,