Seiko Cal. 4475 - 240

The 4475-240 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4475 caliber with 20j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-624297f10ebe]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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