Seiko Cal. 5640 - 589

The Seiko 5640-589 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-c6de815bf558]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1985

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