Seiko Cal. 5621 - 966

The Seiko 5621-966 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-24fca080fd36]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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