Seiko Cal. 4447 - 486

The Seiko 4447-486 represents an important milestone in Seiko's 1972 lineup. Powered by the 4447 caliber with 31j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-939880b310dd]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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