Seiko Cal. 5687 - 306

Released in 1979, the Cal. 5687 with design code 306 was part of Seiko's domestic market collection. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-0c07ded8fbe7]

Also known as: Samurai, Monster

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1979

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