Seiko Cal. 5666 - 424

The Seiko 5666-424 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-d848efcb3ab9]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1990

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