Seiko Cal. 4521 - 572

The Seiko 4521-572 represents an important milestone in Seiko's 1991 lineup. Powered by the 4521 caliber with 27j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-8ef939bed76c]

Also known as: Sumo, Pogue

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1991

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