Seiko Cal. 5678 - 977

Released in 1979, the Cal. 5678 with design code 977 was part of Seiko's domestic market collection. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-cf04416be42e]

Also known as: Navigator, Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1979

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