Seiko Cal. 6331 - 206

This Quartz model from 1967 features a 40mm PVD Black case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-dbe815a51f74]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1967

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