Seiko Cal. 4491 - 632

This Spring Drive model from 1998 features a 39mm Hardlex-Coated Steel case. It features a Silver dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-ef631e57d275]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1998

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