Seiko Cal. 6631 - 788

This Automatic model from 1982 features a 42mm Gold-Plated case. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-8dfed03af607]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1982

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