Seiko Cal. 5687 - 165

Released in 1979, the Cal. 5687 with design code 165 was part of Seiko's domestic market collection. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-d6039ae0aebb]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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