Seiko Cal. 6397 - 446

This Spring Drive model from 1973 features a 45mm PVD Black case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-4cad0b8933aa]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1973

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