Seiko Cal. 5644 - 574

The Seiko 5644-574 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-bd5fd0c7832c]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1966

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