Seiko Cal. 3864 - 147

Released in 1977, the Cal. 3864 with design code 147 was part of Seiko's domestic market collection. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-ac9fd330b23f]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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