Seiko Cal. 5634 - 688

The Seiko 5634-688 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-5bc87a9f9667]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1983

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