Seiko Cal. 3891 - 507

The Seiko 3891-507 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-17de4852fdea]

Also known as: Silverwave, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1974

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