Seiko Cal. 6331 - 998

This Automatic model from 1985 features a 34mm PVD Black case. Powered by the 6331 caliber with 34j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-7e3396b9316b]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1985

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