Seiko Cal. 4478 - 970

The 4478-970 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4478 caliber with 18j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-7dc64838b59a]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1979

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