Seiko Cal. 3898 - 631

This Hand-Winding model from 1965 features a 42mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-49484f2de6ca]

Also known as: Navigator, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1965

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