Seiko Cal. 4447 - 131

The 4447-131 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4447 caliber with 34j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-fccd9bd3f999]

Also known as: Monster, Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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