Seiko Cal. 4566 - 281

The Seiko 4566-281 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-85cf793b3092]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1977

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