Seiko Cal. 6637 - 775

The Seiko 6637-775 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-e1afdc49d520]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1981

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