Seiko Cal. 5642 - 183

The Seiko 5642-183 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-41bf21598c15]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1981

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