Seiko Cal. 4591 - 331

The Seiko 4591-331 represents an important milestone in Seiko's 1974 lineup. Powered by the 4591 caliber with 17j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-93c4e103cb58]

Also known as: Monster, Pogue

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

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