Seiko Cal. 5687 - 558

The Seiko 5687-558 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-5f269ae308dd]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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