Seiko Cal. 4447 - 939

The Seiko 4447-939 represents an important milestone in Seiko's 1970 lineup. Powered by the 4447 caliber with 20j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-200fb9c67318]

Also known as: Shogun, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1970

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