Seiko Cal. 6638 - 862

The Seiko 6638-862 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-af03f6d8af21]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1970

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