Seiko Cal. 4420 - 762

This Spring Drive model from 1987 features a 45mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-1f2ab07e0ab0]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1987

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