Seiko Cal. 6658 - 818

The Seiko 6658-818 represents an important milestone in Seiko's 1989 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-34577d215c3b]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1989

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