Seiko Cal. 4475 - 657

The 4475-657 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4475 caliber with 31j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-259c998c268f]

Also known as: Tuna, Pogue

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

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