Seiko Cal. 5687 - 323

The Seiko 5687-323 represents an important milestone in Seiko's 1976 lineup. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-d364d12f9ca8]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

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