Seiko Cal. 6634 - 537

The Seiko 6634-537 represents an important milestone in Seiko's 1983 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-cdf992db5a28]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1983

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