Seiko Cal. 6634 - 312

The Seiko 6634-312 represents an important milestone in Seiko's 1980 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-1990e331342d]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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