Seiko Cal. 6331 - 316

This Automatic model from 1970 features a 45mm PVD Black case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6b99c415909c]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1970

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