Seiko Cal. 6637 - 574

The Seiko 6637-574 represents an important milestone in Seiko's 1987 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-426e92635ce4]

Also known as: Silverwave, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1987

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