Seiko Cal. 6656 - 428

The Seiko 6656-428 represents an important milestone in Seiko's 1983 lineup. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-2fecb2b316e2]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1983

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