Seiko Cal. 5678 - 106

This Hand-Winding model from 1977 features a 43mm Hardlex-Coated Steel case. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-915dbb668dc1]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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