Seiko Cal. 6391 - 474

The Seiko 6391-474 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-334e6e2eb493]

Also known as: Sea Horse, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1987

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