Seiko Cal. 5657 - 966

The Seiko 5657-966 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-9ab7a4027a1d]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1974

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