Seiko Cal. 6390 - 672

This Spring Drive model from 1967 features a 37mm Gold-Plated case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-86da1c43242a]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1967

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