Seiko Cal. 6231 - 740

This Quartz model from 1971 features a 46mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-e4770cd9fa9d]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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