Seiko Cal. 5284 - 227

The Seiko 5284-227 represents an important milestone in Seiko's 1985 lineup. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-af822659d081]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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