Seiko Cal. 5638 - 598

The Seiko 5638-598 represents an important milestone in Seiko's 1970 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-13e38a520c0b]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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