Seiko Cal. 5678 - 887

The Seiko 5678-887 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-8596abb45a2c]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1981

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