Seiko Cal. 5641 - 680

The Seiko 5641-680 represents an important milestone in Seiko's 1987 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-df26be661c2d]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1987

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