Seiko Cal. 4478 - 120

The Seiko 4478-120 represents an important milestone in Seiko's 1974 lineup. Powered by the 4478 caliber with 34j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-a22ac1359f60]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1974

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