Seiko Cal. 4418 - 365

This Spring Drive model from 1981 features a 40mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-d14eec94ebe7]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1981

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