Seiko Cal. 4547 - 523

The Seiko 4547-523 represents an important milestone in Seiko's 1987 lineup. Powered by the 4547 caliber with 30j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-4055016f3d7e]

Also known as: Navigator, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1987

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