Seiko Cal. 4578 - 402

The 4578-402 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4578 caliber with 17j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-b99e5e31b311]

Also known as: Turtle, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1986

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