Seiko Cal. 5218 - 391

The Seiko 5218-391 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d9d9de0d222e]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1984

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