Seiko Cal. 5621 - 939

The Seiko 5621-939 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6c979a843254]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1976

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