Seiko Cal. 4578 - 558

The Seiko 4578-558 represents an important milestone in Seiko's 1987 lineup. Powered by the 4578 caliber with 25j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-d6c4009e6543]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1987

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