Seiko Cal. 4593 - 990

The Seiko 4593-990 represents an important milestone in Seiko's 1977 lineup. With its 18mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-26bb7630bec4]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

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