Seiko Cal. 4533 - 531

The 4533-531 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4533 caliber with 18j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-884395643712]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1991

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