Seiko Cal. 6397 - 578

The Seiko 6397-578 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-e2d2eaec5949]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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