Seiko Cal. 6312 - 820

The Seiko 6312-820 represents an important milestone in Seiko's 1974 lineup. Powered by the 6312 caliber with 31j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-550335680f6a]

Also known as: Bullhead, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1974

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