Seiko Cal. 5688 - 637

The Seiko 5688-637 represents an important milestone in Seiko's 1984 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-5d797b72292c]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1984

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