Seiko Cal. 6312 - 640

Released in 1975, the Cal. 6312 with design code 640 was part of Seiko's domestic market collection. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4c8c56fb68ba]

Also known as: Shogun, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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