Seiko Cal. 6389 - 945

This Spring Drive model from 1967 features a 44mm Hardlex-Coated Steel case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-5ce8c216d032]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1967

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