Seiko Cal. 4475 - 220

The Seiko 4475-220 represents an important milestone in Seiko's 1971 lineup. Powered by the 4475 caliber with 27j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-4a383e7e82a0]

Also known as: Monster, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1971

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