Seiko Cal. 5638 - 308

The Seiko 5638-308 represents an important milestone in Seiko's 1981 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-dc9a47a63032]

Also known as: Samurai, Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1981

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