Seiko Cal. 4591 - 204

The Seiko 4591-204 represents an important milestone in Seiko's 1966 lineup. Powered by the 4591 caliber with 17j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-69f9a6a17893]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1966

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