Seiko Cal. 4447 - 427

The Seiko 4447-427 represents an important milestone in Seiko's 1980 lineup. Powered by the 4447 caliber with 33j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-1a721e6d5efc]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1980

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