Seiko Cal. 6631 - 771

This Automatic model from 1997 features a 44mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-b32f00aed2b4]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1997

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