Seiko Cal. 6331 - 923

Released in 1973, the Cal. 6331 with design code 923 was part of Seiko's domestic market collection. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a3245bb21de2]

Also known as: Samurai, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1973

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