Seiko Cal. 5638 - 778

The Seiko 5638-778 represents an important milestone in Seiko's 1998 lineup. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-1329cc38ccc4]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1998

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