Seiko Cal. 6390 - 525

This Spring Drive model from 1967 features a 43mm Two-Tone case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-aa18ca9e4f75]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1967

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