Seiko Cal. 5678 - 904

The 5678-904 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5678 caliber with 20j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-e96d92073c95]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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