Seiko Cal. 4421 - 978

The Seiko 4421-978 represents an important milestone in Seiko's 1974 lineup. It features a Cream dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-2723ce969b05]

Also known as: Panda, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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