Seiko Cal. 6331 - 190

This Quartz model from 1971 features a 41mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-8542df0cb1c9]

Also known as: UFO, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1971

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