Seiko Cal. 5638 - 189

The Seiko 5638-189 represents an important milestone in Seiko's 1975 lineup. It features a Cream dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-838d3fa97b1a]

Also known as: Monster, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1975

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