Seiko Cal. 4556 - 897

The Seiko 4556-897 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-cdb2c12d9942]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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