Seiko Cal. 5284 - 851

The Seiko 5284-851 represents an important milestone in Seiko's 1979 lineup. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-bc04e7687d0b]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1979

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