Seiko Cal. 6390 - 728

This Automatic model from 1990 features a 37mm PVD Black case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-caa887c09d46]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1990

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