Seiko Cal. 5280 - 540

The Seiko 5280-540 represents an important milestone in Seiko's 1982 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-9bad1f97a7e5]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1982

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