Seiko Cal. 4478 - 871

The 4478-871 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4478 caliber with 25j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-dc599af3f3e4]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1976

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