Seiko Prospex SPB143 1965's Diver Reinterpretation Gray Dial Frederique Constant measurement unit: 1)

measurement unit: 1)

Seiko Astron's perpetual calendar is correct until February

Lumibrite on bezel

Neobrite: yes

Blue one-way rotating elapsed timing bezel

Seiko Prospex SPB143 1965's Diver Reinterpretation Gray Dial Frederique Constant measurement unit: 1)1965 Diver's Watch Reinterpretation. 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 recreations and reinterpretations of landmark achievements. This versatile timepiece reimagines Seiko's 1965 first diver's