Seiko Cal. 6390 - 458

This Automatic model from 1977 features a 45mm PVD Black case. With its 19mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-cc837281abd7]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1977

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