Seiko Cal. 4455 - 731

The Seiko 4455-731 represents an important milestone in Seiko's 1984 lineup. Powered by the 4455 caliber with 20j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-3d19e11fc08e]

Also known as: Bullhead, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1984

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