Seiko Cal. 5640 - 599

This Spring Drive model from 1988 features a 39mm Titanium case. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-5aa9cfe5856a]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1988

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