Seiko Cal. 6318 - 657

The Seiko 6318-657 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-e1a0c9f813dc]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1981

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