Seiko Cal. 5221 - 939

The Seiko 5221-939 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-bc55cc525bf6]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

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