Seiko Cal. 4447 - 974

The 4447-974 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4447 caliber with 25j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-4fc8f02b8b72]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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