Seiko Cal. 6637 - 108

The Seiko 6637-108 represents an important milestone in Seiko's 1969 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-345ec4ef03a1]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1969

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