Seiko Cal. 5680 - 947

Released in 1970, the Cal. 5680 with design code 947 was part of Seiko's domestic market collection. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-98c39fce3fb2]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1970

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