Seiko Cal. 5639 - 685

This Quartz model from 1989 features a 39mm Titanium case. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-84a396f7166c]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1989

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