Seiko Cal. 4550 - 584

The Seiko 4550-584 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-87aab4a9aec7]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1988

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