Seiko Cal. 4421 - 397

The Seiko 4421-397 represents an important milestone in Seiko's 1966 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-1aa9dfac29f8]

Also known as: Samurai, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1966

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