Seiko Cal. 6634 - 844

The Seiko 6634-844 represents an important milestone in Seiko's 1974 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-66736acb8857]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1974

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