Seiko Cal. 4420 - 762

This Quartz model from 1977 features a 40mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-087203d9d21e]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1977

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