Seiko Cal. 4556 - 391

The Seiko 4556-391 represents an important milestone in Seiko's 1969 lineup. Powered by the 4556 caliber with 18j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-65b769c7ea85]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1969

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