Seiko Cal. 4559 - 378

The 4559-378 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4559 caliber with 22j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-a08cb551b718]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1977

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