Seiko Cal. 4421 - 840

Released in 1981, the Cal. 4421 with design code 840 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-0376d51ff3fe]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1981

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