Seiko Cal. 6331 - 287

This Solar model from 1968 features a 34mm Hardlex-Coated Steel case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-5b77d488dea4]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1968

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