Seiko Cal. 5640 - 607

This Quartz model from 1975 features a 40mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-4c4851b77184]

Also known as: Rally, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1975

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