Seiko Cal. 4531 - 584

The Seiko 4531-584 represents an important milestone in Seiko's 1970 lineup. Powered by the 4531 caliber with 24j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-98cdb2743f23]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1970

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