Seiko Cal. 5278 - 284

The Seiko 5278-284 represents an important milestone in Seiko's 1987 lineup. With its 22mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-ba043399a3d8]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1987

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