Seiko Cal. 4491 - 174

This Spring Drive model from 1987 features a 43mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-e578fd7ae0a0]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1987

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