Seiko Cal. 5639 - 837

The Seiko 5639-837 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-d369128c7b22]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1979

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