Seiko Cal. 4475 - 901

The Seiko 4475-901 represents an important milestone in Seiko's 1972 lineup. Powered by the 4475 caliber with 17j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-13600290a6ab]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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