Seiko Cal. 4539 - 400

The Seiko 4539-400 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-490816567b41]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1975

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