Seiko Cal. 4421 - 146

Released in 1977, the Cal. 4421 with design code 146 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-a350cb74ccde]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1977

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