Seiko Cal. 4556 - 928

The Seiko 4556-928 represents an important milestone in Seiko's 1971 lineup. Powered by the 4556 caliber with 34j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-4a43c062d78d]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1971

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