Seiko Cal. 6637 - 208

The Seiko 6637-208 represents an important milestone in Seiko's 1967 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d2127e166938]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1967

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