Seiko Cal. 6638 - 927

The Seiko 6638-927 represents an important milestone in Seiko's 1982 lineup. Powered by the 6638 caliber with 23j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-e333cb10d11e]

Also known as: Turtle, Shogun

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1982

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