Seiko Cal. 6397 - 678

This Spring Drive model from 1980 features a 35mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-eb0bc1cced59]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1980

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