Seiko Cal. 5687 - 528

Released in 1985, the Cal. 5687 with design code 528 was part of Seiko's domestic market collection. With its 18mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-ac047da2a262]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1985

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