Seiko Cal. 4452 - 556

The Seiko 4452-556 represents an important milestone in Seiko's 1983 lineup. Powered by the 4452 caliber with 20j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-f9f0881909b3]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1983

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