Seiko Cal. 4590 - 993

This Automatic model from 1988 features a 37mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-136989ba72bd]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1988

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