Seiko Cal. 6188 - 638

The Seiko 6188-638 represents an important milestone in Seiko's 1969 lineup. Powered by the 6188 caliber with 19j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-774cf0cac757]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1969

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