Seiko Cal. 5634 - 381

The Seiko 5634-381 represents an important milestone in Seiko's 1980 lineup. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-4d7e6f8b2cf8]

Also known as: Rally, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1980

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