Seiko Cal. 6637 - 992

The Seiko 6637-992 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-db77e2562d34]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

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