Seiko Cal. 4421 - 958

The Seiko 4421-958 represents an important milestone in Seiko's 1990 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-7ed9045d0d8f]

Also known as: Bullhead, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1990

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