Seiko Cal. 6331 - 573

The 6331-573 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8fcc9fd07b6f]

Also known as: Samurai, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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