Seiko Cal. 4421 - 154

Released in 1984, the Cal. 4421 with design code 154 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-ab4ab99d6a9a]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1984

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