Seiko Cal. 5681 - 689

The Seiko 5681-689 represents an important milestone in Seiko's 1990 lineup. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-f510950745e6]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1990

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