Seiko Cal. 4447 - 151

The 4447-151 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4447 caliber with 21j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-f2a25d9eaebc]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1978

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