Seiko Cal. 5666 - 831

This Automatic model from 1965 features a 35mm Gold-Plated case. It features a Cream dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-4588ebd8282f]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1965

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