Seiko Cal. 4584 - 596

The 4584-596 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4584 caliber with 22j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-eea9a31f8cef]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

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