Seiko Cal. 4447 - 121

The Seiko 4447-121 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-4adc45985bdd]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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