Seiko Cal. 6658 - 812

The Seiko 6658-812 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-8aae8be92e68]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1987

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