Seiko Cal. 6391 - 564

The 6391-564 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-90ac55deb3e8]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

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