Seiko Cal. 5637 - 660

The Seiko 5637-660 represents an important milestone in Seiko's 1983 lineup. It features a Silver dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-77dc1a06a9ac]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1983

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