Seiko Cal. 5690 - 438

The Seiko 5690-438 represents an important milestone in Seiko's 1979 lineup. Powered by the 5690 caliber with 22j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-480c9a8b614b]

Also known as: Rally, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1979

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