Seiko Cal. 5643 - 938

The Seiko 5643-938 represents an important milestone in Seiko's 1983 lineup. Powered by the 5643 caliber with 25j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-56f7ea0e3cf3]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1983

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